Answer:
Explanation:
8
When we talk about the "shape" of the universe. It is its intrinsic shape, not the embedding of the universe within a larger space.
It does make sense to talk about the intrinsic shape. Properties like "curvature" can be measured from inside a shape, you don't need suppose that the universe is "in" something to talk about its shape.
Now the space of the universe is three dimensional, this creates visualisation problems. So I'm going to first talk about an imaginary 2d universe:
A 2d universe could be flat, with a curved boundary (like a disc) Or it could be flat with no boundary (an flat infinte plane). Or a 2d universe could be intrinsically curved. If it has positive curvature it could be like the surface of a ball (positive curvature, finite with no boundary) Or shaped like a bowl (positive curvature) Alternatively it could have negative curvature: it could be shaped like a "Pringles crisp" These have negative curvature (this can happen with or without a boundary). Finally there could be regions with different curvature: positive in some parts, negative in others.
The same possibilities exist for our universe: It could be flat (with or without boundary) It could be positively curved (This is intrinsic curvature and your brain can't visualise this for a 3d shape) Or it could be negatively curved (again, don't try to visualise this for a 3d shape, you can't). In the case of positive curvature, it could be finite and unbounded, but for negative curvature, it must either have an edge, or be infinite.
So mathematically these are the possibilities. What does the science say?
We can measure the curvature on large scales. Our measurements are not perfect, there is some room for error. We measure the large scale mass/energy density of the universe, since curvature is caused by gravity, and gravity is caused by mass and energy. If the mass/energy density is > 1 then space would be positively curved. We actually find that the energy density is 1.00±0.02 That is the universe is either flat, or very nearly flat.
No there are profound problems with supposing that the universe has a boundary. But there are also problems with supposing it to be infinite. Scientifically, no edge has ever been detected. So when we build models of the universe, we will generally suppose to have no edge.
Thus our "best guess" is that the universe is uncurved and infinite.
effects of low temperature in crop
production
Colder weather can decrease plant enzyme activity. This then disrupts plant nutrient intake because plants secrete enzymes to digest surrounding materials for soil. Consequently, this can stunt growth or more severely cause them to die
Describe the formation of Mountain Everest.
Answer:
Rising at the border of Tibet and Nepal, Mount Everest formed from a tectonic smashup between the Indian and Eurasian tectonic plates tens of millions of years ago. The collision crumpled the landscape, raising mountains along some 1,5000 miles, a range we know as the Himalaya
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Rising at the border of Tibet and Nepal, Mount Everest formed from a tectonic smashup between the Indian and Eurasian tectonic plates tens of millions of years ago. The collision crumpled the landscape, raising mountains along some 1,5000 miles, a range we know as the Himalaya.
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Explain how species within the natural environment work together.
Answer:
This happens by the process of natural selection. By natural selection, the nature of the species gradually changes to become adapted to the niche. If a species becomes very well adapted to its environment, and if the environment does not change, species can exist for a very long time before they become extinct.
The ones that will be discussed in this article are competition, predation, herbivory and symbiosis. These are not the only types of species interactions, just the most studied — and they are all parts of a larger network of interactions that make up the complex relationships occurring in nature.
Explanation:
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Incised meanders a. develop when the stream gradient is steepened or discharge decreases. b. form when base level remains stable for long periods of time. c. can result from either superposed or antecedent stream activity. d. are demonstrating a feature of stream immaturity (meanders) in a mature setting (steep walls).
Answer:
d. are demonstrating a feature of stream immaturity [meanders] in a mature setting [steep walls].
Explanation:
Incised Meander is a river meander which has been cut abnormally into landscape because uplift of land has caused downward erosion by the river. This represents stream immaturity and level of rivers is not stable.
how does environmental population change in growth
Answer:
We humans are remarkable creatures. From our humble beginnings in small pockets of Africa, we have evolved over millennia to colonise almost every corner of our planet. We are clever, resilient and adaptable―perhaps a little too adaptable
name any two major desert region near the tropic of cancer
Explanation:
Much land on or near the Tropic of Cancer is part of the Sahara Desert, while to the east, the climate is torrid monsoonal with a short wet season from June to September, and very little rainfall for the rest of the year
Alejandro moves to Australia because he found a new job. Which word best
describes Alejandro?
O A. Tourist
B. Immigrant
C. Worker
D. Transient
When there is competition for land, what are some things stakeholders can do to have their voices heard?
Housing development is a solution to increasing housing demand with the rise in population, but this cannot be achieved without causing various environmental impacts. If you lived in Georgia, would you want this land to be developed or preserved? Why?
The land should not be developed.
The stakeholders can do shutdown their businesses and stop doing business activities to have their voices heard. This piece of land should not be developed, it can be preserved because this is the only land left where the organisms live.
If this land is also developed, then the extinction of animals occurs and the whole biodiversity is eliminated from that area so in my opinion, the land should be preserved for the animals so it is recommended that the land should not be developed.
https://brainly.com/question/24324307
Which phrase is the best definition of the word technology, in the narrow
sense?
O A. Tools and their use
O B. Exchange of new ideas
O C. Fast communication
O D. Better ways to do things
Answer:
I think the answer is better ways to do things
importance of scientific discoveries
Answer:
Scientific knowledge allows us to develop new technologies, solve practical problems, and make informed decisions — both individually and collectively. Because its products are so useful, the process of science is intertwined with those applications: New scientific knowledge may lead to new applications.
I HOPE THIS WILL HELP YOU, HAVE A GREAT DAY:)3. Differentiate between. a) Igneous and sedimentary rock b) Sedimentary and metamorphic rock 4. Classify the following rocks Marble, Pumice, Slate, Obsidian, Limestone 5. Write answer in brief a) What is rock? b) How are igneous rocks formed? c) What type of rock is called sedimentary rock? d) Which rock consists of fossils? e) How are metamorphic rocks formed? Give example also. 6. Write any four uses of rocks.
Answer:
3.igneous and sedimentary and sedimentary and metamorphic.
4. Marble- metamorphic
pumice-igneous
slate- metamorphic
obsidian- igneous
limestone-sedimentary
5. a) A rock is a solid mass of geological materials. Geological materials include individual mineral crystals, inorganic non-mineral solids like glass, pieces broken from other rocks, and even fossils. A rock can be composed of only one type of geological material or mineral, but many are composed of several types.
b) Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.
c) Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) or biological detritus (organic matter).
d) sedimentary rock consits of fossils.
e) Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.
6. Any four uses of rocks are:
•Making Cement (Limestone) (Sedimentary Origin)
•Writing (Chalk) (Sedimentary Origin)
•Building Material (Sandstone) (Sedimentary Origin)
•Bath Scrub (Pumice) (Igneous Origin)
•Kerb Stone (Granite) (Igneous Origin)
3
Drag each tile to the correct box.
Which economics term does each scenario describe?
diversified economy
specialization
single-resource economy
A nation rich in precious gen/Stones just exports diamonds
to be made into necklaces, rings, and other jewelry.
>
A nation with many pineapple plantations exports fresh
pineapples, canned pineapples, and pineapple products.
A nation with several climate zones exports almonds,
cranberries, corn, wheat, and peaches.
Reset
Next
Answer:
3.
Diversified economy ==> A nation with several climate zones exports almonds, cranberries, corn, wheat, and peaches.
Specialization ==> A nation rich in precious gem/stones just exports diamonds to be made into necklaces, rings, and other jewelry.
Single-resource economy ==> A nation with many pineapple plantations exports fresh pineapples, canned pineapples, and pineapple products.
Explanation:
Each of these economies differ from each other greatly.
16. How do microplastics found on the ocean floor end up in people's bodies?
A. Coral reefs fail to break down the microplastics, and they end up back on beaches.
B. Humans eat sea salt containing the microplastic.
C. Humans scuba dive in areas where microplastics are visible.
D. Acid rain reacts with plastics on the ocean floor and releases them into the air.
Answer:
B
Explanation:
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Answer: B.
Explanation: hope this helps
identify the statement that is true about soil-forming factors. a. Dry soils tend to contain more organic material than wet soils contain, because wet soils drown vegetation. b. Different plant types can add or remove nutrients within a soil, thereby changing the type of soil that is formed. c. Soil that forms on basalt bedrock will be the same as soil formed on granite bedrock because they are both igneous bedrocks. d. Soil that forms on steep slopes is thicker than soil formed on flat land because of the accumulation of sediment on slopes.
Answer: b. Different plant types can add or remove nutrients within a soil, thereby changing the type of soil that is formed.
Explanation:
Some plants require more a of particular nutrient than others and so will draw more of these nutrients from the soil whilst giving away some of the ones that they do not want. This is one of the reasons that some plants grow better in a particular area than not.
When these plants give or take away nutrients, they would be changing the type of nutrient composition of the soil and this is what makes crop rotation so effective.
In a paragraph of not more than 8 lines describe the reasons for the difference in the population density of South Africa and England.
Hey there! I'm happy to help!
Both South Africa and England have a similar populations. However, these countries have different population densities. Population density is how crowded the country is with people. South Africa is a much larger country in terms of its area while England has a smaller land area. If they have similar populations, but different amounts of space, one is going to have a higher population density. Since England has less space, it has a higher population density as there are more people in a smaller space. There is more land area in South Africa, so this naturally makes it less crowded.
Have a wonderful day and keep on learning! :D
What conditions will increase a nation's Human Development Index? Check all that apply. 0 A. Long work hours O B. A commitment to the education of its population C. The highest gross domestic product in the world D. People who live longer than the world average
Hey there! I'm happy to help!
The Human Development Index takes into account 3 main things about a country:
1. Life Expectancy
2. Education
3. Standard of Living
Long work hours don't necessarily have to do with any of these categories and it can also be associated with human rights violations (slavery, sweatshops, etc.), so this will not increase a country's HDI, so A is incorrect.
A commitment to education will definitely increase a nation's HDI. Gaining knowledge is part of human development, and a great education system hugely facilitates that. B is correct.
It might seem like having the highest GDP will make a country have a better standard of living, but this isn't always the case. A country could produce tons of things but pay the workers very little, so this would not lead to a good standard living. Although a high GDP usually means that a country is doing better, it doesn't necessarily increase a nation's HDI, so C is incorrect.
D is correct because living longer means that the life expectancy is higher. This means that better healthcare, services, treatments, medicines, opportunities, etc. are available in the country, and being able to live longer is very important for human development.
Have a wonderful day and keep on learning! :D
Answer: C. a commitment to the education of its population
D. people who live longer than the world average
Explanation:
I took the quiz
John's dad makes wooden furniture, but there are many furniture makers in his state. John's dad decides to ship his furniture to the next state to
be sold, as there are fewer people selling furniture in that state. Which concept MOST impacts this movement of goods?
ОА
transportation
OB.
distance
oc intervening opportunity
OD. supply and demand
Answer:
D. supply and demand
Explanation:
John's dad is choosing to market his goods where supply is lower, assuming he can capture a larger share of the demand that he can locally. In the scenario described, distance and transportation costs appear not to be significant.
describe cross section of land structure if nepal in detail
why Malaysia has many rives?
If AB=12 and BC =19 then what does AC equal
Answer:
it depends on the angle made by lines AB and BC
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Which are examples of climate’s impact on the natural character of a location?
SELECT ALL THAT APPLIES. NOT JUST ONE. MOVE ON IF YOU DON'T KNOW PLEASE THANK YOU!!
A. a year-long drought
B. solar radiation
C. the amount of total precipitation
D. accrued snowfalls in mountainous areas
Answer:
the amount of total precipitation
What is the sum of the factors?
Two factors of -48 have a difference of 19. The factor
with a greater absolute value is positive.
6 0 €
0-19
0-13
ОООО
16
Mark this and return
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Submit
9514 1404 393
Answer:
13
Explanation:
-48 = -1·48 = -2·24 = -3·16 = -4·12 = -6·8
The differences between the second factor and the first are ...
49, 26, 19, 16, 14
The factor pair with a difference of 19 is (-3, 16). The sum of these two factors is ...
16 +(-3) = 13
Which of these countries has the smallest land area?
A Nigeria
B) Algeria
Democratic Republic of Congo
Sudan
Does the news today aim to inform people or entertain people?
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Question 7 of 40
Which of the following best describes a natural resource? As
A. Currency used to exchange for or purchase products
B. A cultural or religious ideology used by humans
C. Products created by humans for improved living conditions
D. A substance, energy source, or organism used by humans
SUBMIT
Answer:
D. A substance, energy source, or organism used by humans
Explanation:
Its not man made like the others
Which layer of Earth experiences the least amount of pressure?
Answer: the crust.
Explanation: Because the crust does not have to support as much weight. For example, if you were to say the layer closest to the center of the Earth experiences the least amount of pressure, that would not be true because the layers closer to the center of the Earth have to support even more weight above them then the layer farthest out.
Hope this makes sense :))
3. Of the events that you researched in Part II, which do you think was most important to the women’s suffrage movement in the United States? Why?
Answer:
The woman's suffrage movement is important because it resulted in passage of the Nineteenth Amendment to the U.S. Constitution, which finally allowed women the right to vote
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cam on nha
Answer:
d
Explanation:
NPL also gives services of accurate time-keeping. is it true or false
Answer:
it's true
Explanation:
Indian standard time is maintained by National Physical Laboratory
