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.
According to the map, which of the following statements is true? Russia remains heavily interdependent with nations of both Europe and Asia. The nations of Africa are heavily dependent upon one another for trade. Economically speaking, the nations of Europe operate independently from one another. The nations of South America have a high level of interdependence.
Answer:
ANSWER D)
Explanation:
THE NATIONS OF SOUTH AMERICA HAVE A HIGH LEVEL OF INTERDEPENDENCE.
In the Andes Mountains of South America, entire towns of thousands of people have been buried suddenly when water and loose materials traveled downhill as a viscous fluid. This type of catastrophic event is known as a
Answer:
Debris avalanche
Explanation:
Debris avalanche is usually caused by unstable volcanic conditions or collapse of a slope and is characterized by the a large amount of soil and sometimes water bodies being buried as a result of the movement of the debris being moved after the collapse.
It is also characterized by water and loose materials traveling downhill as a viscous fluid.
Based on the given description,this type of catastrophic event is known as a:
Debris avalanche
According to the given question, we are asked to show the name of the catastrophic event which is described from the given scenario about water and loose materials moving downhill.
As a result of this, we can see that the best description for the given scenario is that it is a debris avalanche because it is a type of volcanic condition where soil and water combines and bury large bodies after it has traveled downhill
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ASAP Please
Which of the following statements about the world's population is the most accurate?
A) It has grown rapidly in the last few centuries.
B)It has grown at a steady rate for the last 1,000 years.
C)It is growing more slowly now than 100 years ago.
D)It is growing fastest in rural areas.
A) Ha crecido rápidamente en los último siglo.
Answer: A
Explanation: It has grown rapidly in the last few centuries.
what is 2 ways you determine location ?
Answer:
1 By the use of conventional signs or landmarks
2 By using compass or cardinal points
Answer: Please Give Me Brainliest
Longtitude and Latitude
Explanation:
4 — A globalização pode aumentar a proliferação de doenças virais, devido ao aumento da circulação de pessoas. A pandemia do Coronavírus é um exemplo. O vírus se espalhou rapidamente para to- dos os continentes. Observe os dados do Brasil: Agora você é o artista. Faça um gráfico em barras com os dados acima.
Answer:
O maior número de casos foi registrado em 69074 casos.
Explicação:
O coronavírus também afeta fortemente o Brasil. 3,1 milhões de pessoas afetadas pelo coronavírus e 2,2 milhões são recuperadas desta doença. 103.000 mortes por esse vírus no Brasil. A partir do mês de abril, o número de casos aumenta e a 29 de julho, maior número de casos i. e. 69074 casos foram registrados no país. Mas agora o número de casos diminui no Brasil. No dia 11 de agosto, 52.160 casos foram registrados, o que é menor do que nos dias anteriores.
7. Describe the difference between a command, a market, and a mixed economy. (3 points)
Hey there! I'm happy to help!
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COMMAND ECONOMYA command economy is an economy that is controlled by the government or the state. The government dictates what will be produced, how much of it will be produced, and the method by which it will be produced.
This is the type of economy found in socialist and communist countries, where the government has much more power to plan the economy to improve it for the citizens of the country. The means of production are collectively owned.
This economy can be found in countries such as China, Vietnam, Cuba, Venezuela, and Laos.
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MARKET ECONOMYA market economy is one that is controlled by the customers and businesses. As a consumer, you vote with your dollars. If nobody buys a product that a company makes, the company will stop making that product. The companies individually decide what they will produce, how they will produce it, and how much of that thing they will produce.
This is the type of economy usually found in countries with a smaller government, where the government has less control of the economy and it is controlled by the people, companies, entrepreneurs, etc.
This economy can be found in countries such as the United Kingdom, Australia, Singapore, Canada, etc.
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MIXED ECONOMYA mixed economy is a hybrid of command and market economies. What happens is that there are government has control over goods and services in the economy via things like higher taxes, welfare distribution, etc.
The government also can control companies to some degree with regulations. It isn't necessarily socialist or communist as the government doesn't have complete control, but it does have more control over the economy, and this tends to fall on a spectrum. Mixed economy can be an umbrella term for different combinations with companies and the government.
Examples of countries with mixed economies include France and the United States.
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Have a wonderful day and keep on learning! :D
COMMAND ECONOMY
A command economy is an economy that is controlled by the government or the state.
__________________________________________________________
MARKET ECONOMY
A market economy is one that is controlled by customers and businesses.
__________________________________________________________
MIXED ECONOMY
A mixed economy is a hybrid of command and market economies.
The mountains of the northern part of the Nation block the cold and wind that blows towards Nepal from the central asia
Answer:
Is it suppose to be a true or false or what?
Help plssss nowww pls pls pls
Answer:
Planetary orbits around our Sun are not perfect circles. They're ellipses--a loose term to use is oval or ovoid. At some point Earth gets to its closest point along its orbital path to the Sun . 6 months later it will be at its farthest away. The distance from the Sun is not what causes the seasons. The amount of direct sunlight hitting a certain hemisphere of Earth is what causes the seasons. So, when the Earth's axis is tilted so that the Northern Hemisphere is titled toward the Sun, it's summer time in the Northern Hemisphere. When the Northern Hemisphere is tilted away, it's winter. So, even though we are closer in distance during January through March, we in the Northern hemisphere are tilted away and it is winter for us. Yes, that means it is summer in the Southern Hemisphere.
Answer From Gauth Math
Which statement is CORRECT?Question 27 options: Fire suppression prevents destruction of forests in the long run. Deforestation causes little change in the water supply of an area. Subsistence farming can help prevent mass scale deforestation. Roads going through forested areas have little effect on deforestation because people use them solely for transportation.
HELP WILL MARK BRAINLIEST!! ONLY TWO ANSWERS TO ANSWER FROM!!
What is likely true about the tilt and location of a place if the weather is cold and snowy?
A. The axis is tilted away from the sun, and the location is in the mid-latitudes
B. The axis is tilted away from the sun, and the location is in the low-latitudes.
Since it receives less ultraviolet light and is less likely to have an impact on the globe to cause a particular spot to be hot, the Earth becomes colder the further it is from the star.
Thus, Option A is correct.
What are mid-latitude and low-latitude?The northern hemisphere's region between 30° and 60° latitude can be generically referred to as the mid-Latitude Region. About 36 nations from the main regions of East Asia, Central Asia, Central, and Eastern Europe, Western Europe, and some parts of North America are included in the Northern Hemisphere's Mid-Latitude.
Low latitudes are defined as areas that are between 30 degrees N/S and the Equator (0 degrees N/S). Between 30 degrees N/S and 60 degrees N/S are the middle latitudes. Additionally, the high latitudes are found between the poles (90 degrees N/S) and 60 degrees N/S.
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In 1980 there was growing concern that the protective ozone layer over the Antarctic might be decreasing and thereby allowing so much harmful ultraviolet radiation to reach the Earth that polar marine life would be damaged. Some government officials dismissed these concerns, since statistics indicated that global atmospheric ozone levels remained constant. The relevance of the evidence cited by the government officials in support of their position would be most seriously undermined if it were true that
Answer:
Even where the amount of atmospheric ozone is normal, some ultraviolet light reaches the Earth's Surface.
Explanation:
Before 1980 there was very little concern about atmospheric ozone decrease. Many plants and animals flourish in warm climates rather than in polar regions. The increase exposure to ultraviolet rays due to shift in atmospheric ozone has threatened marine life.
The following are statements describing the demographic and economic conditions which may be generally ascribed to the European Realm. Which one is inaccurate?
A) Europe constitutes one of the great population clusters of the world.
B) levels of economic development in Europe decline from east to west.
C) Europe's population is highly urbanized.
D) European agriculture is mainly market-oriented.
Answer:
The following are statements describing the demographic and economic conditions which may be generally ascribed to the European Realm. Which one is inaccurate?
B) Levels of economic development in Europe decline from east to west.
The correct one is: Levels of economic development in Europe decline from west to east.
Name two types of environment
Answer:
natural and geographical environment
Explanation:
Answer:
They are:
Natural
Industrial
Social.
Explanation:
These are the three types of environment we have.
I need help on this: The depositional feature formed where a stream flows from a steep slope to leveled land?!?!?!?!??!?!
Answer:
[tex]\boxed{\sf Surface \ runoff}[/tex]
Explanation:
Surface runoff is a depositional feature, formed where a stream from a water source or rain, flows from a steep slope to leveled land. Surface runoff is common in the hydrological cycle.
From the above picture write down your observation Pls answer….
soil erosion in Iran
The removal of fertile topsoil by the action of wind, rain and river water is called soil erosion.
Soil erosion is the process of detachment of soil particles from the parent body or disturbance of the soil structure is known as soil erosion. Generally, soil erosion is called as the creeping death of the soil. Soil erosion is considered as negative soil pollution.
Causes of Soil Erosion:
Soil loss is maximum in the region with high population densities. Globally the present rate of soil erosion is over 2500 million tonnes/year. The chief causes of soil erosion are:
1. Land-use changes involving the destruction of forests and grasslands for expansion of agriculture and other commercial activities.
2. Overgrazing of pastures.
3. Fallowing of land for a longer duration.
4. Overuse of chemical fertilizers under intensive cultivation practices destroys the soil structure consequently the soil becomes susceptible to erosive forces.
5. Shifting cultivation by tribal population.
6. Continuous cultivation of the same crop.
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Alejandro moves to Australia because he found a new job. Which word best
describes Alejandro?
O A. Tourist
B. Immigrant
C. Worker
D. Transient
How would the Coriolis effect alter movement of an air mass flowing from a higher to a lower latitude in the Southern Hemisphere? It would deflect the path of the air mass to the east. It would deflect the path of the air mass to the west. It would deflect the path of the air mass to a lower altitude. It would deflect the path of the air mass to a higher altitude.
Answer:
It would deflect the path of the air mass to the west.
Explanation:
The Coriolis effect would deflect the path of the air mass to the east. Thus, option 'A' is the correct option.
What is the Coriolis effect?The deflection of winds on Earth is one of the most frequent instances of the Coriolis effect in operation. We perceive the Coriolis force, an apparent force caused by the rotation of the Earth. In the northern hemisphere, this causes the wind to be deflected to the right, and in the southern hemisphere, to the left. This explains why the wind flows in each hemisphere in the opposite direction around low and high-pressure systems.
Gustave-Gaspard de Coriolis, a French scientist and mathematician in the 19th century, first described the Coriolis effect in 1835. He developed fluid dynamics theories after researching waterwheels and came to the conclusion that the same theories could be used to explain fluid motion on the Earth's surface.
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Which of the following statements is correct? Which of the following statements is correct? Only fossils of microorganisms are found in geological strata older than the Cambrian. The Cambrian explosion is evidence for the instantaneous creation of life on Earth. There are fossils of animals in geological strata that are older than the Cambrian. The Cambrian explosion marks the appearance of filter-feeding animals in the fossil record.
Answer:
Option: There are fossils of animals in geological strata that are older than the Cambrian.
Explanation:
The Cambrian Period regards an essential part of life on Earth. It is the period when most of the animals first emerge in the fossil history. This event is called the Cambrian explosion. According to scientists, the Cambrian period began after the sudden increase of oxygen that led to the evolution. Insects, spiders, and crustaceans and brachiopods were some of the species that emerged.
The correct statement is that there are fossils of animals in geological strata that are older than the Cambrian.
What is the Cambrian period?
The Cambrian period is one where most rocks have the appearance of fossils.
They are the earliest records of the fact that there were fossils of plants and animals in the world.
Which of the following is correct about floodplains? Which of the following is correct about floodplains? Floodplains are not associated with deposition. They are generally filled with layers of alluvium. Despite the name, they are rarely subjected to flooding. They are well drained throughout. They are an erosional feature located within a depositional feature.
They are generally filled with layers of. the following is correct about floodplains. Thus option (A) is correct.
What are floodplains?A bottomland, floodplain, or floodplain is a region of land next to a river that runs from the channel's banks to the foot of the valley's surrounding walls and is subject to flooding during times of high discharge. The soils are typically made up of clays, silts, sands, and that have been left behind by floods.
Floodplains frequently have high soil fertility because regular flooding can deposit nutrients and water; some significant agricultural regions, such as the Mississippi river basin and the Nile, heavily rely on the floodplains.
The Mississippi River has a large floodplain covering large portions of midwestern states through which it flows. Ninety percent of this area is no longer flooded annually due to levees designed to hold the water back.
Therefore, option (A) is correct.
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Which countries’ boundaries changed as a result of World War | or World War ||?
Spain
Soviet Union
Czechoslvakia
Poland
Germany
Portugal
Estonia
Sweden
Answer
Soviet Union
Czechoslovakia
Poland
Germany
Estonia
what is inside black hole?
Answer:
soli
Explanation:
besides besides black I can see it or
Answer:
The event horizon is where the escape speed exceeds the speed of light: you'd have to be going faster than light (which is impossible for any bit of matter) to escape the black hole's gravity. Inside the event horizon is where physics goes crazy. ... A singularity is what all the matter in a black hole gets crushed into.
the fastest growing major religion in the world is
Islam is growing faster than any other religion.
In fact, some demographers believe that around
the year 2070, muslims will outnumber christians.
Christian populations are still growing, but not
nearly as fast to keep up with the pace of muslims.
What are the three similarities of weather and climate?
Answer:
1 they are air2they are very similar
match the group in column 1 to the action it wants to take toward the amazon forest in column 2
Answer:
Native american = Live traditional lives in the forest
Ranchers = clear the forest
Environmentalist = preserved the forest
Power Companies = build dams
Hope this help
Answer:
Power Companies -- Build Dams
Ranchers -- Clear the Forest
Native Americans -- Live Traditional lives in the Forest
Environmentalists -- Preserve the Forest
Explanation:
Got it right on A P E X :)
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Kiel Canal connects which among the following?
[A] Baltic Sea and North sea
[B] Baltic Sea and Norwegian Sea
[C] Baltic Sea and White sea
[D] White Sea and North Sea
Explanation:
the answer is A baltic Sea and North sea
why i cant go to anime worlds...
Answer:
Because we don't live in that universe.
Explanation:
Don't feel bad, remember that everything we imagine is bound to be somewhere in the current universe.
Name at least two extinct species that share a close evolutionary relationship with humpback whales.
Answer:
The extinct species called Pakicétus and Indohyus may have had close evolutionary ties to humpback whales. The differences between Indohyus, Pakicetus, and Humpback whales are that Indohyus and Pakicetus both had legs and lived on land, while whales live in the ocean and have no legs. Although the embryo of a humpback whale has limbs that are dormant when it is adult, this could indicate that the animal's ancestors lived on land. Pakicetus and Indohyus are similar to humpback whales because their heads are shaped like long whale skulls. Everything is constantly changing due to evolution, the fossil record of the humpback whale is probably incomplete.
Imagine that an impact occurred on the continental plate millions and millions of years ago, leaving behind an impact crater near the right side of the base of the volcano. Why would there be little evidence of this impact crater found today
Answer:
erosion would erode the surrounding area making less obvious and filled in by hardened magma leaving volcano over millions of years i think. Would leave little impact of the crater. Also growth of plants over years in ash-rich, fertile soil
Explanation:
Volcanic craters may be connected with a cone or flanks. Flows may also be present. Impact craters can be distinguished from volcanic craters by having center peaks, ejecta, high rims, and floors that are lower in elevation than the surrounding topography.
What is a volcanic crater called?A caldera is a depression formed when a volcano's magma chamber is emptied in an explosive eruption. Without any structural support below, the terrain surrounding the erupting volcanic vent or vents collapses internally, forming the bowl-shaped caldera.
When an asteroid or meteorite collides with the surface of a bigger solid object, such as a planet or moon, an impact crater is generated. This item must be moving extremely fast—many thousands of miles per hour—in order to generate a proper impact crater.
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How can you combat the danger of a single story?
How can teachers?
How can politicians?
Answer:
We should read it again and again.
And try understand what the author is willing to explain...
Teachers:
Teacher's used to read the every lessons at their free time.So that they can understand the concept very easily..
how do the activities of man affect the environment
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
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Answer:
Explanation:Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.