what is mean by combution ​

Answers

Answer 1

Answer: Burning

Combustion is the scientific word for burning.

Research has proven that ;

During combustion(burning)  a substance reacts with oxygen from the air and these  reactions happen at high temperatures, and transfer energy to the surroundings as light and heat.

This is why you see flames when things burn.

Explanation:


Related Questions

Suppose that you are in charge of designing a fracking job site. Which of these locations would be most ideal for the site?

Answers

Answer:

B. On a flat, vacant plot in the outskirts of the city

Explanation:

Fracking, also known as hydraulic fracturing is a drilling method used in the oil and gas industry of most countries. It is the process whereby natural gas and petroleum is extracted from deep down the Earth. A crack is made in the rock layers, followed by the injection of a liquid called fracking liquid, which is usually water, at a very high pressure.

The process of fracking has serious environmental side effects e.g. release of harmful gases, noise pollution, water contamination etc. and hence, when choosing a fracking site, environment's sustainability and safety of people should be taken into account. This is why a fracking site cannot be designed in a residential city or around a neighborhood. The site should rather be designed in a location where it would pose a minimal environmental threat to the people e.g flat, vacant plot in the outskirts of the city

(Scientific method please answer) A _________ is an educated guess about the answer to a question.

Answers

Answer:

A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis could also be called an "educated guess". Another way of thinking about it, is that a hypothesis is a possible answer to the question you've asked.

hoped i helped

Sort the tiles to show the characteristics of life that they describe.

Answers

Answer:

The characteristics of the life shared by all living organisms.

Explanation:

There are seven characteristic of life shared by living things.

Reproduction :- these characteristics are performed that single cell organisms diving to the cell prepares to the form of the second new cell.Regulation :- regulation perform that complex and require to the internal functions and contain that specific function.Energy processing :- the energy process performed that source of energy for the metabolic activities, and convert the chemical energy.Homeostasis :- these characteristics maintain the internal conditions and diverse the chemical  process.Growth :- these characteristics provide the instruction direct cellular growth and development .Sensitivity :- that can perform by the plant can be source of light, considered by the positive response .Order :- this is highly organized structure and cell complex to the molecules.

Explain why fermentation stops after
a certain time in making
making bread?

Answers

Answer:

The yeast die at 140° F

Explanation:

The fermentation process is caused by the living organisms called yeast feeding on the sugar in the dough. As the yeast feed on the sugar they release CO² which causes the bread to rise but once the bread in the oven reaches 140° all the yeast are killed off and the fermentation process stops.

The process of fermentation stops after a certain time in making bread because the organism which carries this process has been killed.

What do you mean by Fermentation?

Fermentation may be defined as a process a chemical process by which molecules such as glucose are broken down anaerobically in the presence of yeast.

During fermentation, the yeast produces excess carbon dioxide due to which the dough of bread swells. But after the completion of fermentation when bread places in the oven or any other warmer temperature, it killed the yeast, and hence fermentation stops.

Therefore, the process of fermentation stops after a certain time in making bread because the organism which carries this process has been killed.

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The town in this image is near an inactive volcano. If the volcano were to violently erupt, which location would be least affected by volcanic ash and lava?

Answers

Answer:

i think it is the state park im not sure but lmk if im wrong or right

Explanation:

The correct answer is the plane, as it is flying in the sky, but the lava from the volcano after its eruption can easily flow down to the park, hospitals, etc., and the plane is least about to be affected by the volcanic eruption.

What is a volcanic eruption?

A volcanic eruption is a natural phenomenon that occurs when magma, ash, and gases are expelled from a volcanic vent or fissure in the Earth's surface. Volcanic eruptions can range from relatively small and quiet to explosive and violent, and they can have significant impacts on the environment and on human populations. Volcanic ash and lava can be carried by the wind over large distances, so the direction of the wind and its strength are important factors in determining which areas will be most affected. Areas that are located upwind from the volcano are likely to be more affected by volcanic ash and lava than areas that are located downwind.

Hence, the correct answer is the plane, as it is flying in the sky, but the lava from the volcano after its eruption can easily flow down to the park, hospitals, etc.

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why do all Karens have breathing problem when it comes to wearing masks????????

Answers

Answer:

because they are karens lol

Explanation:

Because they are weird

16. Which one of the following statements best describes group behavior?

A. Group behavior depends solely on its most influential individual members.
B. Group behavior is a thing apart from the behavior of any individual in the group.
C. A group is the sum of the behavior of all of the group members.
D. As a group behaves, so too will each individual in the group.

Answers

Answer:

C. A group is the sum of the behavior of all of the group members.

Explanation:

The statement which best describes group behavior is: C. A group is the sum of the behavior of all of the group members.

A group is also referred to as a team and it can be defined as a group of people or set of individuals having various skill set, knowledge, ideas and experience, who come together to work on a project or task, in order to successfully achieve a set goal and objective.

Therefore, individuals working as a group usually interact with the other group members and as a result, this enhances performance and strengthen the level of relationship they share.

In conclusion, a group is the overall sum of the behavior of all of the members in a particular group.

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When objects of two different temperature are in contact, what happens?

Answers

Answer:

The answer is C.

Explanation:

This is because the objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal. We say that heat flows from the hotter to the cooler object.

Energy is transferred from a warmer to a cooler object through the phenomenon of heat. For instance, a large pan of lukewarm water will gain heat from a lit match (a higher temperature object) (lower temperature object). Thus, option C is correct.

What change in temperature when object are in contact?

It feels warmer in your hands to hold a hot cup. The heat is moving from one object to another, which is what you are feeling. Your hands receive the hot chocolate's thermal energy.

Heat is exchanged when two objects are at different temperatures. Up until the two items are at the same temperature, the cooler object warms up. Always, heat energy moves from a hot object to a cooler one.

The colder end will get energy from the hot end as it passes through the rod. The temperature will eventually equalize across the entire rod. Wearing gloves is crucial when working with hot metal, for this reason.

Therefore, The warmer object transfer heat energy to the cooler object.

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Match the condition with its descriptor. a. acne vulgaris f. basal cell carcinoma b. athlete’s feet g. rosacea c. impetigo h. shingles (herpes zoster) d. psoriasis i. warts e. herpes j. boils ____ 1. contagious fungal infection ____ 2. also called carbuncles and are painful __A_ 3. common and chronic disorder of the sebaceous glands _P__ 4. chronic inflammatory skin disease characterized by dry, reddish patches that are covered with silver-white scales _G__ 5. common inflammatory disorder characterized by chronic redness and irritation of the face __c_ 6. acute, inflammatory, and contagious skin disease seen in babies and young children ____ 7. viral infections that affect the skin surrounding the nail __ 8. most common and least malignant type of skin cancer __ 9. is caused by virus same as the one that causes chicken pox ____ 10. viral infection that is usually seen as a blister

Answers

Answer:

c

Explanation:

Una planta de flores púrpura se cruza con una planta de flores blancas, obteniéndose una descendencia en la segunda generación filial de 50 % heterocigotas, 25% homocigotas dominantes y 25% homocigotas recesivas. (el color púrpura domina sobre el blanco) Diga: ¿Qué genotipos y fenotipos tienen los padres para que se cumpla esta proporción en la segunda generación? ¿A qué la ley que corresponde? ¿Por qué los padres presentan ese genotipo y cuál es el fenotipo que expresan la segunda generación filial? Explique. Demuestre con cruces

Answers

Answer:

Los padres son homocigotas y la F1 estará formada por individuos heterocigotas

Explanation:

El cruzamiento entre un ejemplar homocigota dominante P (flores púrpura) y un homocigota recesivo p (flores blancas) para un rasgo determinado por un sólo un gen con dominancia completa producirá una generación filial F1 100% heterocigota. Por su parte, cuando cuando estos individuios cuyo genotipo es Pp se cruzan entre sí, los genotipos esperados en la F2 serán 1 (PP, homocigota dominante): 2 (Pp, heterocigota): 1 (pp, homocigota recesivo). Esta aserción corresponde a la segunda ley de Mendel, la cual es conocida como la Ley de Segregación Independiente.

Which statement about balancing selection is correct? View Available Hint(s) Hint 1.opened hint What is balancing selection, and how does it differ from other forms of selection? Which statement about balancing selection is correct? When balancing selection occurs, no single phenotype has a distinct advantage over others in terms of fitness. When balancing selection occurs, all phenotypes have equal fitness. When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare. When balancing selection occurs, phenotype does not matter.

Answers

Answer:

Correct statement: When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare  

Explanation:

You will find the explanation in the attached file due to technical problems.

Which structure is located between the trachea and a bronchiole? A. epiglottis B. pharynx C. alveolus D. bronchus

Answers

the correct answer is the bronchus

a sample of an unknown liquid has a volume of 12.0L and a mass of 6g. what is its density? show your work explain how you determined this value brainly

Answers

Explanation:

12.0L =12000cm^3

[tex]density = \frac{mass}{volume} [/tex]

[tex] = \frac{6}{12000 } \\ = 0.0005 {gcm}^{3} [/tex]

Scientists want to track the wind speeds and precipitation for a hurricane that will affect the entire East Coast of the United States. Which weather equipment would be best to measure the impact of the storm for this entire region? A. an anemometer B. a rain gauge C. Doppler Radar D. global positioning system (GPS)

Answers

Answer:

A anemometer an instrument for measuring the speed of the wind, or of any current of gas.

GPS is to see where you on on the earth so this is a no.

rain gauge only shows the amount of rain  so this is a no

Doppler radar determine's the location and velocity of a storm, clouds, precipitation. So therefore, this is your answer.

Explanation:

Which of the following sequences is correct for the downhill movement of electrons during cellular respiration? A. glucose – citric acid – ATP – NAD+ B. glucose – NADH – electron transport – O2 C. glucose – pyruvate – ATP - oxygen D. glucose – ATP – electron transport - NADH E. glucose – Kreb’s cycle – NADH - ATP

Answers

Answer:

B. glucose – NADH – electron transport – O2

Explanation:

This is the sequence  from glycolysis in which  glucose molecules are split down to pyruvate, to oxidative phosphorylation.

During this process the electrons are released from glucose  molecule as it is oxidised multiple times as pyruvate, and other molecules formed subsequently in Kreb's cycle, until the oxidative phosphorylation is reached .

The makes the  carrier molecules to be reduced.Thus NAD→NADH,FAD→FADH .

The electrons from above are  transferred in hydrogen atoms  to matrix by these co-enzymes.Where the H is split to electrons  and protons.

The electrons for the ETC, produce the PMF for transporting  protons into the intramembrane space.

The concentration of protons generated the electrochemical gradients  which is needed to produce energy for for phosphorylation of ADP with Pi to form ATP by ATpase synthase.

The electrons moves as chain,and this is finally accepted by oxygen as the final electron acceptor.

one limitation to science is that it cannot answer questions about ______ ?

Answers

Answer: Phenomena.

Explanation: That includes topics such as infinity, the future and god.

Hope this helps!

3. What are the consequences of felling of trees?​

Answers

Answer:

The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.

Explanation:

Which of the following is a distinct structure found specifically in the liver, spleen, and bone marrow?
Select one:
a. Sinusoidal capillaries
b. Fenestrated capillaries
c. Venous sinus
d. AV anastomoses
e. Continuous capillaries​

Answers

Answer:

option A is correct

Explanation:

The adrenal glands produce hormones that impact short-term responses, including fear and anger.

Norepinephrine and __________ are examples of these hormones.

Answers

Answer:

Epinephrine, also known as Adrenaline

Explanation:

Adrenaline impacts short-term mood and can take seconds to flood your system.

*it may also be cortisol, I'm not sure if there's more context. Cortisol takes longer to work and can have long-term effects.

The structure labeld as x is the

Answers

Explanation:

The structure labeled as x is the

nucleus.

Hope this helps.. Good luck!!

Answer:

The structure labeled as x is the  nucleus.

Immigration will cause a population to increase if

A. the birth rate is greater than the death rate

B. the birth rate and death rate are balanced

C. the birth rate doubles and the death rate does not

D. the death rate is greater than the birth rate

Answers

Answer:

If the birth rate is greater than death rate.

The answer to the problem is A.

A week after a near-drowning incident, a 6-year-old boy presents with respiratory distress, tachypnea, and fever. What should you suspect

Answers

Answer: I would suspect there was actually something in the water that caused this. Maybe the child swallowed some of the water.

Explanation:

Shown above

Complete urinary obstruction causes which of the following? (Select all that apply.) Increased urinary stasis Increased urinary frequency Decreased hydrostatic pressure Decreased glomerular filtration Increased predisposition to infection

Answers

Answer:

hydrostatic pressure increaes and decreased in glomerula filtration and increase in urinary stasis

Explanation:

write one ecological importance of mucor.
mucor is a microorganism!​

Answers

Answer:

I actually I understand but I can try I would give three importance I no

Explanation:

1)It can be used in producing ethanol

2) It has a large array of sugar and can be used as a food source

3) It is also used as fish feed and maybe a valuable tool to clean oil spills

Hoped it helped

Scientists are able to reproduce certain plants and animals by cloning them in laboratories. The diagram shows the steps of cloning using tissue cultures. Do you think cloning is a form of asexual reproduction? Explain your answer using evidence from the diagram

Answers

Answer:

Yes.

Explanation:

Yes, cloning is a form of asexual reproduction because there is no fusion of sperm and eggs takes place. the animal which is formed from this process is identical of that organism because it is produced from the tissue of that single animal. in 1996, first mammal is produced from cloning was sheep named dolly at the Roslin Institute in Scotland. In cloning, the egg is taken from female organism and remove the nucleus from the egg then the desired organism cell is taken and fuse with the nucleus with the help of electricity. Then implant this embryo in the body of first organism from where egg is taken and after that the embryo turns into a baby, this process is called cloning.

Answer:

Yes, cloning is a form of asexual reproduction. The diagram shows that new plants form from a single parent plant, which means that the offspring are genetically identical to the parent.

Explanation:

Edmentum

What are intermediate species? in an easy way to understand. And some examples?

Answers

Answer:

An intermediate is a species which appears in the mechanism of a reaction, but not in the overall balanced equation. Examples: Amphibian/land vertebrate (Pederpes)- Intermediate form between primary aquatic Upper Devonian amphibians and early tetrapods. Lizard/snake (Pachyrhachis)—Intermediate form of snakes and an extinct lizard-like reptile. It was a primitive snake with limbs.

Explanation:

Answer: These are certain species that create “connecting links” or something like that, between the fossil record of life which help to show the slow process of speciatin.

[speciatin- the formation of new and distinct species in the course of evolution.]

Hope this helped! <3

Which of the following California animals is found in both marshlands and grasslands?

Answers

Answer:

pronghorn antelope.giant kangaroo rats.gophers.mule deer.

Select the correct answer from each drop down menu.
During an experiment, readings for blood pressure in a person's body were found to be constant. However, when measured by a
different blood pressure cult, the readings differed by 15 points for each reading. This difference indicates that the results are
but not
Reset
Next
dimentum. All rights reserved

Answers

Answer:

The results are precise but not accurate

Explanation:

Precision is the term that refers to the degree of agreement between measured results. This means that the measurements of the finished system are very similar and with equal differences, under the same conditions.

An example of this is the results shown in the question above, which are very similar. In addition, these results do not have the "real and absolute value" and therefore are not accurate.

Which of these questions can be answered using science? Is human travel beyond our solar system possible? Should the use of green energy be increased? What is the best vacation spot? Which is the best online store?

Answers

Answer:

"Is human travel beyond our solar system possible?" can be answered using science.

Explanation:

I just took the test.

Hope this helps! - J

The question that can be answered by science is "Is human travel beyond our solar system possible". Thus, the correct option for this question is A.

What is Science?

Science may be defined as a branch of scientific study that involves the application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

It can broadly be classified into three categories such as Physics, Chemistry, and biology. Each sub-classification illustrates its own field of detailed study.

Science always deals with the concept of nature as well as natural phenomena. So, among the given options, the solar system is an important component of it.

The answer to this question is little bit complex but definitely the answer should be determined with the help of science only.

Therefore, the question that can be answered by science is "Is human travel beyond our solar system possible."

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In the following diagram, four different index fossils are labeled:

In this diagram, from top to bottom, an index fossil from the Jurassic period is labeled A, an index fossil from the Permian period is labeled B, an index fossil from the Devonian period is labeled C, and an index fossil from the Cambrian period is labeled D.

Public Domain

Which of the labeled fossils comes from the oldest organism?

A
B
C
D

Answers

Answer:

D, the fossil in the Cambrian period

Explanation:

there are time periods on the left side that go from youngest on the top and oldest on the bottom

In the labeled diagram the fossils comes from the oldest organism an index fossil from the Cambrian period is labeled at the point D. Thus, option D is correct.

What is the index fossil about?

Index fossils, which is also known as the key fossils or the guide fossils, are fossils of the organisms that are used to help determine the age of rock formations and sedimentary strata. Index fossils are typically chosen because they are easily recognizable, widespread, and existed for a relatively short period of time.

They are used as "markers" for specific time periods, and the presence or absence of certain index fossils can help scientists determine the relative age of rock formations.

In this scenario, the index fossil labeled A is from the Jurassic period, which lasted from about 201 to 145 million years ago. The index fossil labeled B is from the Permian period, which lasted from about 299 to 251 million years ago.

Therefore, In the labeled diagram the fossils comes from the oldest organism an index fossil from the Cambrian period is labeled at the point D. Thus, option D is correct.

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Simplify[tex] \frac{7xy}{ {x}^{2} - 4x + 4 } \div \frac{14y}{ {x}^{2} - 4} [/tex]I will mark it as the brainliest please answer this question The Side-Side-Side Similarity Postulate states that if the sides of one triangle are congruent to the sides of another triangle, then the triangles are similar. True or False? vitamin c is obtained_____ citrus fruitsA. fromB. ofC. inD. by what does the inverse of f(x)=2x-3 looks like on a graph A polling company reported that 53% of 1018 surveyed adults said that secondhand smoke issecondhand smoke is "very harmful.""very harmful." Complete parts (a) through (d) below. a. What is the exact value that is 53% of 1018? b. Could the result from part (a) be the actual number of adults who said that secondhand smoke issecondhand smoke is "very harmful" question mark "very harmful"? Why or why not? c. What could be the actual number of adults who said that secondhand smoke issecondhand smoke is "very harmful" question mark "very harmful"? d. Among the 10181018 respondents, 260260 said that secondhand smoke issecondhand smoke is "not at all harmful.""not at all harmful." What percentage of respondents said that secondhand smoke issecondhand smoke is "not at all harmful" question mark "not at all harmful"? Please answer this correctly without making mistakes Select the correct answer.Which of these sentences contains an adverbial clause?OA He told me where I could get some coffee.OB. What she pointed out is very significant in these times.Oci do not know how to invest my money.OD. Most animals thrive where they can find food easily.ResetNext A project manager has just found out that a major subcontractor for her project is consistently late delivering work. The project team member responsible for this part of the project does not get along with the subcontractor. To resolve the problem, the project manager says, "You both will have to give up something to solve this problern," What conflict resolution method is she using Use De Moivre's theorem to find the indicated power of the complex number. Write the answer in rectangular form.[2(cos10 + i sin10)]^3. Which element of plot does this excerpt from "The Monkey's Paw" best represent? The knocking ceased suddenly, although the echoes of it were still in the house. He heard the chair drawn back and the door opened. A cold wind rushed up the staircase, and a long loud wail of disappointment and misery from his wife gave him courage to run down to her side, and then to the gate beyond. The street lamp flickering opposite shone on a quiet and deserted road. A.Rising action B.Falling action C.Exposition D.Climax A loop of wire is at the edge of a region of space containing a uniform magnetic field B. The plane of the loop is perpendicular to the magnetic field. Now the loop is pulled out of this region in such a way that the area A of the coil inside the magnetic field region is decreasing at the constant rate c. That is, dA/dt=c, with c>0.Required:a. The induced emf in the loop is measuredto be V. What is the magnitude B of the magnetic field that the loop was in?b. For the case of a square loop of sidelength L being pulled out of the magneticfield with constant speed v, What is the rate of change of area c= -dA/dt Which of the following will most likely result in anaerobic respiration?A. Solving Algebra equationsB. RunningC. SittingD. Walking If you would like to become a physical activity professional, but you suffer from stage fright and hate to speak in front of groups, as a student your best option is to:_________ Point B is on line segment AC. Given BC=9 and AB=11, determine the length AC. What events do you think caused voters to lose faith in the political system and the nations leaders in the late 1960s and 1970s? Can you think of any events during your lifetime that may have caused voters to lose faith in the political system and nation's leaders? A student holds a bike wheel and starts it spinning with an initial angular speed of 7.0 rotations per second. The wheel is subject to some friction, so it gradually slows down.In the 10.0 s period following the inital spin, the bike wheel undergoes 60.0 complete rotations. Assuming the frictional torque remains constant, how much more time ????s will it take the bike wheel to come to a complete stop?The bike wheel has a mass of 0.625 kg0.625 kg and a radius of 0.315 m0.315 m. If all the mass of the wheel is assumed to be located on the rim, find the magnitude of the frictional torque ????ff that was acting on the spinning wheel. Habakkuk prophesied in Israel prior to the Assyrian invasion and warned that the Lord would send the Assyrians to punish the people in Samaria.A. TrueB. 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