Select the correct answer.
How much has the amount of carbon dioxide in the atmosphere increased since 1750?
А. 10%
B. 30%
C. 50%
D. 40% ​

Answers

Answer 1

Answer:

The answer is C. It has increased about 50% since 1750.

Answer 2
C might be the answer.

Related Questions

What is the answer for this

Answers

Answer:

Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

what are plastids?name their types.​

Answers

Answer:

A double membrane bound organelle involved in the synthesis and storage of food, and is commonly found within the cells of photosynthetic organisms, like plants. Supplement. One of the distinctive features of a plant cell is the presence of plastids.Types of Plastids

Chloroplasts.

Chromoplasts.

Gerontoplasts.

Leucoplasts.

phân tích đặc điểm thích nghi sinh lý của sinh vật đất

Answers

Answer:

Các vi khuẩn Psychrotolerant rất quan trọng đối với các ứng dụng công nghệ sinh học và chu trình cacbon. Tuy nhiên, các cơ chế cho phép chúng tồn tại và hoạt động trong môi trường đông lạnh vẫn chưa rõ ràng. Để làm sáng tỏ sự thích nghi của màng tế bào vi sinh vật với sự đóng băng, chúng tôi ủ đất với glucose được đánh dấu 13C theo vị trí cụ thể ở + 5 (đối chứng), - 5 và - 20 ° C và định lượng 13C trong CO2 và axit béo phospholipid. Quá trình oxy hóa cao của glucose C-1 ở + 5 ° C cho thấy sự biến đổi thông qua con đường pentose phosphate. Tuy nhiên, ở nhiệt độ subzero, sự oxy hóa ưu tiên của vị trí C-4 gợi ý chuyển sang quá trình đường phân. Sự gia tăng gấp ba lần axit béo photpholipid Gram âm trong đất ủ ở - 5 ° C đi kèm với sự gia tăng gấp hai lần sự kết hợp ở 13C. Sự gia tăng không đều này của các axit béo phospholipid và kết hợp 13C có thể được giải thích là do sự khử bão hòa đồng thời của các chuỗi axit béo hiện có và sự tổng hợp de novo của các axit béo không bão hòa đơn, cho thấy sự phát triển của vi sinh vật. Ngược lại, vi khuẩn Gram dương kết hợp các axit béo phospholipid ở nhiệt độ - 20 ° C cao hơn 2 lần so với ở - 5 và + 5 ° C mà không làm tăng đáng kể hàm lượng axit béo của chúng. Điều này phản ánh việc sửa chữa chuyên sâu các màng bị hư hỏng ở - 20 ° C mà không có sự phát triển của vi sinh vật. Tỷ lệ nấm / vi khuẩn thấp hơn 1,5 lần ở nhiệt độ subzero so với + 5 ° C, phản ánh sự thay đổi cấu trúc cộng đồng vi sinh vật theo hướng vi khuẩn. Theo đó, vi sinh vật đất thích nghi với sự đóng băng bằng cách (1) chuyển con đường trao đổi chất của chúng từ con đường pentose phosphate sang đường phân, (2) điều chỉnh axit béo phospholipid bằng cách khử bão hòa và, (3) chuyển cấu trúc cộng đồng vi sinh vật sang vi khuẩn Gram âm bằng cách khử nấm dân số.

Explanation:

Không phải lời của tôi! Tôi hi vọng cái này giúp được!

Use the drop-down menu to complete the
sentence.
are capable of differentiation to
form specialized cells.
DONE

Answers

Answer:

The correct answer is - stem cells.

Explanation:

Stem cells can give rise to all tissues and organs in the body. These cells can differentiate into any form of cells, which allows them to repair tissues that have been damaged by various physiological or natural ways

There are two types of stem cells: Adult Stem Cells and Embryonic stem cells.

Cells that are present in the bone marrow or umbilical cord of a newborn baby and can be divided as Hematopoietic, a cell that can form blood cells and the immune system, and mesenchymal that form the body's cartilage, bones, muscles and other.

Embryonic stem cells are found on at blastocyst stage of embryo. These cells can transform into any type of tissue in the human body, which increases their treatment potential.

Answer:

stem cells

Explanation:

Because I'm smart...

Which of the following is a skin sensory receptor for touch?
A) Pacinian corpuscle
B) Meissner's corpuscle
C) Ruffini body
D) free nerve ending

Answers

The answer is B.Meissners corpuscle

Meissner's corpuscle is a skin sensory receptor for touch.

Meissner corpuscles are responsible for the sense of touch or light pressure, that is, they are very sensitive to the movement of objects on the skin and to very low vibrations.

About Meissner corpuscles:

• They are located on the lips and fingertips and are very sensitive.

• Meissner corpuscles act when there is a soft and light touch, and when vibrations are less than 50 hertz.

• These receptors can be altered when there is the presence of diseases where both thermal and tactile sensitivity are altered.

Therefore, we can conclude that Meissner corpuscles detect fine touch, that is, they are receptors on the skin that are sensitive to low-frequency vibration.

Learn more about Meissner corpuscles here: https://brainly.com/question/6963352

Melanie has had a recent cold with symptoms of runny nose, sneezing, coughing, congestion, and malaise. Today, she is concerned that she has a sharp pain in her chest. She goes to see her health care provider, and is diagnosed with costochondritis, an inflammation in the cartilage between the ribs. From your reading related to cellular injury and adaptations as well as inflammation, answer the following questions:

a. What anatomic problem most likely leads to costochondritis?
b. What is the injury in costochondritis?
c. What would the acute inflammatory response look like?

Answers

Answer:

a. Viral infections may lead to inflammation between the ribs (i.e., costochondritis)

b. Viral infection

c. Viral infection may lead to the influx of chemical mediators (cytokines), increased blood flow, and movement of plasma and white blood cells (leukocytes) from the blood into the injured site

Explanation:

Costochondritis is a painful condition caused by the inflammation of the cartilage that joins the ribs to the breastbone (this joint is known as the “costochondral joint”). Costochondritis is caused by inflammation of the costochondral joint, which may be triggered by multiple causes including, among others, viral/bacterial/fungal infections, exercise or strenuous activity, chest trauma, osteoarthritis, presence of tumors, etc. Acute inflammation is the immediate immune response of the body to harmful stimuli (e.g., viral infections), which is characterized by the increased movement of white blood cells (such as neutrophils and macrophages) that rapidly travel from the blood into the injured area. This plasma contains chemical mediators like pro-inflammatory cytokines which are secreted from immune cells (e.g., Th1 cells, CD4+ cells, macrophages) in order to promote inflammation.

An environmental microbiologist collects a water sample that contains bacteria that have not contacted the outside world for thousands of years. He uses sterile technique while transporting then back to the lab for testing. To his surprise, they are resistant to ampicillin. Based on your knowledge of bacterial evolution, which of the following statements provides the most reasonable explanation for this discovery?

a. The bacteria are a result of contamination on the way to the lab.
b. The bacteria do not contain 50S ribosomal subunits.
c. Vancomycin is a naturally occurring mineral occuring in the cave water.
d. The bacteria randomly acquired a mutation in their cell wall building machinery.

Answers

Answer:

The answer is "Option d".

Explanation:

These genetic mutations in heritage in the genome of the bacterium were referred to as biofilm formation. All those other changes are attributable to some genetic changes during replication. The short term of bacteria and vast quantities of the colony can develop rapidly.

The type of environmental choice then transfers into another generation. Some translations benefit human people and enhance their fitness.

The most logical cause for this finding is Option "D", and although types of bacteria have not been in contact with the outside world for hundreds of years, certain random changes resist penicillin.

Write Ratio 10 :35 in the form 1:n

Answers

1:3.5

Hope this helps! :)

why do many RNA viruses commonly demostrate antigen drift?​

Answers

Answer:

:D

Explanation:

State three different information about zygote.

Answers

Answer:

A zygote is the union of the sperm cell and the egg cell . Also known as a fertilized ovum, the zygote begins as a single cell but divides rapidly in the days following fertilization. After this two-week period of cell division, the zygote eventually becomes an embryo.

Explanation:

What processes found at a divergent boundary will help form the following rocks? ​

Answers

Answer:

B

Explanation:

What is a divergent boundary:

In plate tectonics, a divergent boundary is a linear feature that exists between 2 tectonic plates moving away from each other.

They can produce rifts, which become rift valleys.

Divergent boundaries also form volcanic islands, which occur when the plates move apart to produce gaps that magma rises to fill.

Sedimentary rocks form due to deposition, and accumulation

Metamorphic rocks form in a transformation of existing rock to new rock in a process called metamorphism.

Igneous rocks form through the cooling and solidification of magma or lava.

When the filled gaps of magma cool off, it will produce igneous rocks.

Explain the lac operon. How does it work when lactose is present and when lactose is not present. What about the presence of glucose?

Answers

Answer: The lac operon is an operon used to transport and metabolize lactose. In the presence of lactose, it functions as an inducer, it binds to the Lac I repressor protein and generate a conformational change that decreases its affinity for the operon region. Thus, the operon region is left free, the RNA polymerase can transcribe the structural genes.

Explanation:

An Operon is a group of structural genes whose expression is regulated by the same control elements and genes. The lac operon is an operon used to transport and metabolize lactose in Escherichia coli bacteria. Lactose is a disaccharide formed by the union of a glucose molecule and a galactose molecule (monomers). Upon breaking the glycosidic bond of lactose, both monomers are released and become available for use for energy. Remember that glucose is the main source of energy, and bacteria will always prefer to metabolize glucose rather than any other sugar, which they will only metabolize as an alternative energy source if glucose is not available.

The operon consists of several structural genes:

Lac z gene: encodes the enzyme β-galactosidase, which catalyzes the hydrolysis of lactose into glucose and galactose.Gene lac y: encodes the protein galactoside permease, for the transport of lactose into the bacterium.Promoter: region of DNA upstream of the above-mentioned genes that controls their expression, and where RNA polymerase binds to carry out gene transcription (synthesis of RNA from DNA that involves the expression of a gene).Operator: region of DNA located between the promoter and the beginning of the structural genes, which is recognized by the repressor protein Lac I.Repressor gene: encodes the Lac I repressor protein, which binds to the operator region and thus prevents transcription of genes under the control of this promoter. When the repressor is removed from the operator (in the presence of inducer which is lactose), RNA polymerase is ready to bind and start transcription.

So, the lac operon is under a type of negative regulation, where genes can always be transcribed, except when the Lac I repressor protein is bound to the operator region. The promoter of the lac I gene is constitutive, so the Lac I protein is permanently expressed and remains bound to the operator, preventing the transcription of structural genes. That is, preventing the action of the lac operon in the absence of lactose. However, in the presence of lactose, it functions as an inducer of the operon. It is able to bind to the Lac I repressor protein and generate a conformational change that decreases its affinity for the operon region. Thus, the operon region is left free, the RNA polymerase can freely transcribe the structural genes, the enzyme β-galactosidase is synthesized which can degrade lactose to glucose plus galactose (and thus metabolize the lactose in the medium).

It should be clarified that in reality, the true inducing molecule of the lac operon is allolactose, an isomer of lactose obtained by a transglycosylation occasionally carried out by β-galactosidase. But usually to simplify terms, lactose is referred to as the inducer.

So, the lac operon is always inactive unless there is lactose in the medium. As mentioned, E. coli prefers glucose, so the lac operon will not be activated in the presence of lactose if glucose is present in the medium. If both glucose and lactose are present in the medium, the repressor is inactivated, so the operon is transcribed but at a basal (low) level due to the presence of glucose.


What are the components of the extracellular matrix of bone? Blood? Describe how these different matrices contribute to the different functions of bone and blood?

Answers

Answer:

The Bone Extracellular Matrix in Bone Formation and Regeneration

Explanation:

Bone regeneration repairs bone tissue lost due to trauma, fractures, and tumors, or absent due to congenital disorders. The extracellular matrix (ECM) is an intricate dynamic bio-environment with precisely regulated mechanical and biochemical properties. In bone, ECMs are involved in regulating cell adhesion, proliferation, and responses to growth factors, differentiation, and ultimately, the functional characteristics of the mature bone. Bone ECM can induce the production of new bone by osteoblast-lineage cells, such as MSCs, osteoblasts, and osteocytes and the absorption of bone by osteoclasts. With the rapid development of bone regenerative medicine, the osteoinductive, osteoconductive, and osteogenic potential of ECM-based scaffolds has attracted increasing attention.

please mark as brainliest

it is responsible for being bidirectional of the cell membrane​

Answers

Answer:

I believe it is Cholestral

Explanation:

What gland produces an iodine-containing jormone

Answers

Thyroid Gland produces an iodine-containing hormone

Answer:

thyroid gland

Explanation:

internally, the glands consists of follicles, which produce thyroxine and triiodothyronine hormone. These hormones contain iodine.

what is photosynthesis .......?​

Answers

Answer:

the process by which green plants turn carbon dioxide and water into food using energy from sunlight

Answer:

Explanation:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Q.#23.Lymph nodes are soft, small, round- or bean-shaped structures. They usually cannot be seen
or easily felt. They are located in clusters in various parts of the body, such as the: Neck, Armpit, Groin
and Inside the center of the chest and abdomen. At times these areas used to be swollen up for few days and are
gone. Explain why these swollen experiences are important.​

Answers

Answer:

Lymph nodes swell to protect us from illness if they do not swell non fatal illnesses could spell out death

Explanation:

Which gases is unique to planet earth?

Answers

Answer:

Earth's atmosphere is roughly 78 percent nitrogen and 21 percent oxygen, with trace amounts of water, argon, carbon dioxide and other gases. Nowhere else in the solar system is there an atmosphere loaded with free oxygen, which is vital to one of the other unique features of Earth: life.

Answer:

oxygen and carbon dioxide are unique gases to planet earth..

The photograph shows soil layers. What is the bottom layer of soil?

Answers

Answer:

bed rock

Explanation:

ok ok ok ok ok ok ok ok ok ok ok

Yeasts life cycle is categorized as

Answers

Answer:

Alteration in generation

Explanation:

It's because yeast has both haploid and dipliod phases in its life cycle ‍♂️

Alternation in general

Where are the photoreceptors located Inside a human eye?

Answers

Answer:

○They are located in the retina.

The type of cell in your eye that

 detects photons and sends them to 

your brain. 

They are found in the retina (the back layer of the eye). Rods and cones are 

the two types.

---------------------

☆HOPE IT HELPS....

☆HAVE A GREAT DAY!!!

Which of the following is not a main characteristic of a mineral?
A. Man-made
B. Solid
C. Predictable chemical composition
D. Inorganic

Answers

The answer is A. Man-made

Does religion or evolution explain why we are here. which is right are they both right are both wrong. explain your reasoning

ᴵ ˡᶦᵏᵉ ᵗᵒ ˢᵉᵉ ʷʰᵃᵗ ᵒᵗʰᵉʳ ᵖᵉᵒᵖˡᵉ ˢᵃʸ ᵃᵇᵒᵘᵗ ᵗʰᶦˢ.

I will give brainly if your argument is convencing

Answers

Answer:

ok so like i think they do but it also makes things really complicated

Explanation:

becauuuuseeeee its the fact that for me i always think that maybe thats how the world birthed orrrrrrrr that all of this is a made up concept of life cause everything you think about is just another concept. anddddd it could just be like the matrix and its like hard to think about how everything we know couldd just be made up or pointless to the point where there is a point of living ykkkkk.

Mark Brainliest please

My argument runs like this. I’ll construe “science” as the set of tools we use to find truth about the universe, with the understanding that these truths are provisional rather than absolute. These tools include observing nature, framing and testing hypotheses, trying your hardest to prove that your hypothesis is wrong to test your confidence that it’s right, doing experiments and above all replicating your and others’ results to increase confidence in your inference.

And I’ll define religion as does philosopher Daniel Dennett: “Social systems whose participants avow belief in a supernatural agent or agents whose approval is to be sought.” Of course many religions don’t fit that definition, but the ones whose compatibility with science is touted most often – the Abrahamic faiths of Judaism, Christianity and Islam – fill the bill.

Next, realize that both religion and science rest on “truth statements” about the universe – claims about reality. The edifice of religion differs from science by additionally dealing with morality, purpose and meaning, but even those areas rest on a foundation of empirical claims. You can hardly call yourself a Christian if you don’t believe in the Resurrection of Christ, a Muslim if you don’t believe the angel Gabriel dictated the Qur’an to Muhammad, or a Mormon if you don’t believe that the angel Moroni showed Joseph Smith the golden plates that became the Book of Mormon. After all, why accept a faith’s authoritative teachings if you reject its truth claims?

Indeed, even the Bible notes this: “But if there be no resurrection of the dead, then is Christ not risen: And if Christ be not risen, then is our preaching vain, and your faith is also vain.”

Many theologians emphasize religion’s empirical foundations, agreeing with the physicist and Anglican priest John Polkinghorne:

“The question of truth is as central to [religion’s] concern as it is in science. Religious belief can guide one in life or strengthen one at the approach of death, but unless it is actually true it can do neither of these things and so would amount to no more than an illusory exercise in comforting fantasy.”
The conflict between science and faith, then, rests on the methods they use to decide what is true, and what truths result: These are conflicts of both methodology and outcome.

In contrast to the methods of science, religion adjudicates truth not empirically, but via dogma, scripture and authority – in other words, through faith, defined in Hebrews 11 as “the substance of things hoped for, the evidence of things not seen.” In science, faith without evidence is a vice, while in religion it’s a virtue. Recall what Jesus said to “doubting Thomas,” who insisted in poking his fingers into the resurrected Savior’s wounds: “Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.”


Two ways to look at the same thing, never the twain shall meet. Gabriel Lamza/Unsplash
And yet, without supporting evidence, Americans believe a number of religious claims: 74 percent of us believe in God, 68 percent in the divinity of Jesus, 68 percent in Heaven, 57 percent in the virgin birth, and 58 percent in the Devil and Hell. Why do they think these are true? Faith.

But different religions make different – and often conflicting – claims, and there’s no way to judge which claims are right. There are over 4,000 religions on this planet, and their “truths” are quite different. (Muslims and Jews, for instance, absolutely reject the Christian belief that Jesus was the son of God.) Indeed, new sects often arise when some believers reject what others see as true. Lutherans split over the truth of evolution, while Unitarians rejected other Protestants’ belief that Jesus was part of God.

And while science has had success after success in understanding the universe, the “method” of using faith has led to no proof of the divine. How many gods are there? What are their natures and moral creeds? Is there an afterlife? Why is there moral and physical evil? There is no one answer to any of these questions. All is mystery, for all rests on faith.

The “war” between science and religion, then, is a conflict about whether you have good reasons for believing what you do: whether you see faith as a vice or a virtue.

Compartmentalizing realms is irrational

So how do the faithful reconcile science and religion? Often they point to the existence of religious scientists, like NIH Director Francis Collins, or to the many religious people who accept science. But I’d argue that this is compartmentalization, not compatibility, for how can you reject the divine in your laboratory but accept that the wine you sip on Sunday is the blood of Jesus?

Watershed drains waters into a stream and tributaries. Which is its main function?


A. Production of continuous water supply that maintains life forms

B. Prevents growth of new plant species

C. Contributes to soil formation

D. Creates new minerals ​

Answers

Answer:

B. Prevents growth of new plant species.

Answer:

B. Prevents growth of new plant species

Which type of process occurs in the absence of oxygen?

cellular respiration

photosynthesis

fermintation

all of the above

Answers

photosynthesis prosecss in the absence of oxygen

Where Adam and Eve really the first people? or where there other people before them, or did adam and eve even exist at all. explain your reasoning.

ᴵ ˡᶦᵏᵉ ᵗᵒ ˢᵉᵉ ʷʰᵃᵗ ᵒᵗʰᵉʳ ᵖᵉᵒᵖˡᵉ ˢᵃʸ ᵃᵇᵒᵘᵗ ᵗʰᶦˢ.
i will give brainly if it is convencing.

Answers

Answer:

If you are religious then you might believe in Adam and Eve and the Garden of Eden. But if you believe in science, then you would believe in evolution.

Sapiens or humans have been on the Earth for around 300,000 years.

Earlier ancestors existed 1.4 to 2 millions years ago.

Earliest writing is 5400 years old.

The bible is 2700 years old.

Why was there no record of Adam and Eve earlier?

Because they never really existed until someone created them.

The someone wasn't a deity . It was a man. A man who created a story.

Earth's seasons are caused by its
O A. precession
O B. rotation
O C. revolution
O D. ecliptic

Answers

Answer:

seasons are caused by revolutions. hope this helps

Which best describes adenosine triphosphate (ATP)?
A waste product molecule that is produced by cells but cannot be used by them.
A high energy molecule that is used by every cell in the body as an energy carrier.
A process that is used to create energy when oxygen is available to the body.
A process that is used to create energy when oxygen is not available to the body.

Answers

Answer:

a high-energy molecule that is used by every cell in the body as an energy carrier.

Answer:

A high energy molecule that is used by every cell in the body as an energy carrier.

Explanation:

Adenosine triphosphate, also known as the "energy currency" of the cell is an organic molecule that readily supplies energy to the cells to carry out metabolic and catabolic functions. This molecule consists of a nitrogenous base known as adenine, ribose sugar, and three phosphate molecules. The hydrolysis of ATP provides energy for muscle contraction, nerve impulses, signaling for hereditary materials like DNA and RNA, as well as phosphorylation.

Consider a mixture of bacterial species from the same genus, such as Staphylococcus. Some members of this genus are harmful pathogens, while others are not. Would a selective medium alone be a good tool to separate the harmful species from the non-harmful species

Answers

Answer:

No. There are different types of media that may result useful to separate this species. Moreover, differential media can also be used to differentiate closely related species (e.g., by the change of color in the medium)

Explanation:

A selective media is a type of media capable of selecting for the growth of specific microorganisms while inhibiting the growth of others. For example, if a bacterium is resistant to an antibiotic (e.g., ampicillin), then this compound can be added to the medium in order to select bacteria that are resistant and simultaneously inhibit the growth of susceptible bacteria. Moreover, a differential media is a media that contain chemical indicators that allow certain microorganisms to be visually identified by the appearance of the colony and/or its surrounding media. Differential media have into account certain biochemical characteristics of target microorganisms (e.g., the change of color in the medium which is associated with the ability of the microorganism to ferment sugar molecules).

what energy source does the nervous system prefer

Answers

Answer:

NIH

Explanation:

It's a primary energy required

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Find m>X 21.0422.6267.3868.96 If the broker, while acting as agent in a sale of real property, misrepresents the principal's property to a buyer, Solution A has a pH of 7, and solution B has a pH of 14. Which statementbest describes these solutions? Receipt-of-goods discounts tend to be offered in cases where? You are spending a semester studying in Buenos Aires Argentina. While looking through the entertainment section of the newspaper you come across the following description of a play currently being performed.This description mentions all of the following about the performance EXCEPT ________. What is the temperature of the middle most layer of the suns atmosphere ? Read the excerpt from Fast Food Nation.The labor practices of the fast food industry have their origins in the assembly line systems adopted by American manufacturers in the early twentieth century. Business historian Alfred D. Chandler has argued that a high rate of throughput was the most important aspect of these mass production systems. A factorys throughput is the speed and volume of its flowa much more crucial measurement, according to Chandler, than the number of workers it employs or the value of its machinery.Which of the following choices best describes the evidence used in this excerpt?An experts opinion provides historical background of an important concept.An experts viewpoint presents a counterclaim to the authors argument.Statistical and factual evidence prove the authors claim.Personal experience creates persuasive, emotional appeal. Identify the following verb by number and person by checking on the appropriate boxes.They call.first personthird personsame form for both singular and pluralsecond personpluralsingular Which equation represents a line which is parallel to the lineX + 6y = -24? The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 145 grams of aradioactive isotope, how much will be left after 6 half-lives?Use the calculator provided and round your answer to the nearest gram. Planets closer to a star will have what type of average temperature A planet has a circular orbit around a star. It is a distance of 98,000,000 km from the centre of the star. It orbits at an average speed of 45,000 km/h. How many Earth days does it take the planet to orbit the star? Give your answer to 2 sf. EASY!! Please help!! 25 points An entrepreneur wants to start a new business. She needs a huge amount ofcapital to get started but is willing to divide the profits and control over thecompany among a large group of investors. Which type of business wouldbest suit her needs?A. Sole proprietorshipB. PartnershipC. Limited liability companyO D. Corporation Which statement best summarizes the health benefit oftrails and greenways?O Greenways preserve open space fromdevelopment.o Trails can be used by pedestrians, bicyclists, andequestrians.It is estimated that 60% of Americans usegreenways and trails for exercise.Greenways are corridors of protected open spacemanaged for conservation and recreation purposes.Greenways often follow natural land or water features,and link nature reserves, parks, cultural features, andhistoric sites with each other and with populated areas.Greenways can be publicly or privately owned, and someare the result of public/private partnerships. Trails arepaths used for walking, bicycling, horseback riding, orother forms of recreation or transportation....Many people realize exercise is important for maintaininggood health in all stages of life; however, many do notregularly exercise. The US Surgeon General estimatesthat 60% of American adults are not regularly active andanother 25% are not active at all. In communities acrossthe country, people do not have access to trails, parks, orother recreation areas close to their homes. Trails andgreenways provide a safe, inexpensive avenue for regularexercise for people living in rural, urban, and suburbanO Trails and greenways allow people to exercise in asafe and inexpensive manner. i needs help plzzzzzzzz I WILL MARK BRAINLIEST TO WHOEVER ANSWERS CORRECTLY FIRST If QR = 8 and PR = 14, what is PQ? Write your answer as a decimal or integer. Give an example of each of the following chemical changes.(a) A photochemical reaction involving (i) silver salt(ii) water(b) A reaction involving (i) blue solution (ii) formation of dirty green precipitate (c) Two gases combine to form white solid. (d) A reaction where colour change is noticed. I realized that this was our own electric light for us to turn on and off as we pleased. I pushed a chair under it and after some instruction from my mother proceeded to create lightning in the room by turning the switch as fast as I could. Barrio Boy, Ernesto Galarza Based on this passage, what is the best inference about Ernesto? PQR is a triangle. PR = 13 cm, PQ = 12 cm and angle QPR = 30Calculate the length of QR.