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weeeeeb [17]
1 year ago
13

Mantle material rises in convection currents because heated materials become.

Geography
1 answer:
worty [1.4K]1 year ago
6 0

Mantle material rises in convection currents because heated materials become less dense.

<h3>What is convection current?</h3>
  • Convection is a single- or multiphase fluid movement that develops on its own as a result of the interaction between a fluid's body forces—most frequently gravity and density—and material property heterogeneity.
  • Differential heating leads to convection currents. Warm, less dense, lighter material rises while cool, more dense, heavier material sinks. When a fluid's one component is heated, the difference in temperatures causes the fluid to flow in a particular direction.
  • The process of a heated fluid rising and being replaced by a cooler one is known as convection cycle.
  • Convection currents use the mass motion of a fluid, such as water, air, or molten rock, to move heat from one location to another. The earth's ocean currents, atmospheric weather, and geology are all controlled by convection currents' capacity to transport heat.

Learn more about convection current here:

brainly.com/question/9739063

#SPJ9

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An elephant lives in a grassland area.
netineya [11]

Answer:

POPULATION

Fewer than 50,000

SCIENTIFIC NAME

Elephas maximus indicus

HEIGHT

6.5–11.5 feet

WEIGHT

Around 11,000 pounds

LENGTH

Around 21 feet

HABITATS

Forests

The Asian elephant is the largest land mammal on the Asian continent. They inhabit dry to wet forest and grassland habitats in 13 range countries spanning South and Southeast Asia. While they have preferred forage plants, Asian elephants have adapted to surviving on resources that vary based on the area.

Asian elephants are extremely sociable, forming groups of six to seven related females that are led by the oldest female, the matriarch. Like African elephants, these groups occasionally join others to form larger herds, although these associations are relatively short-lived. In Asia, elephant herd sizes are significantly smaller than those of savannah elephants in Africa.

More than two-thirds of an elephant's day may be spent feeding on grasses, but it also eats large amounts of tree bark, roots, leaves, and small stems. Cultivated crops such as bananas, rice, and sugarcane are favorite foods. Elephants are always close to a source of fresh water because they need to drink at least once a day.

In Asia, humans have had close associations with elephants over many centuries, and elephants have become important cultural icons. According to Hindu mythology, the gods (deva) and the demons (asura) churned the oceans in a search for the elixir of life so that they would become immortal. As they did so, nine jewels surfaced, one of which was the elephant. In Hinduism, the powerful deity honored before all sacred rituals is the elephant-headed Lord Ganesha, who is also called the Remover of Obstacles.

7 0
3 years ago
Read 2 more answers
Multinational states most often have political problems because __________.
liq [111]

The correct answer is - A. each nation desires an independent sovereign state.

It is very rare that a multinational state can function without any ethic or separatist problems. Most of the ethnic groups want to have their own independent state and not be ruled by someone else from another ethnic background. There lots of examples of this throughout the world, like Spain, were the Catalans in the northeastern part of the country, and the Basques in the northern part of the country, have strong separatist movements, and have been trying for decades to become independent states.

6 0
4 years ago
Read 2 more answers
5. Aquifers are a source of freshwater.
diamong [38]
That is true what’s the question?
8 0
3 years ago
HI, HELP
irina1246 [14]

Answer:

A carbon tax aims to make individuals and firms pay the full social cost of carbon pollution. In theory, the tax will reduce pollution and encourage more environmentally friendly alternatives. However, critics argue a tax on carbon will increase costs for business and reduce levels of investment and economic growth.

pros-cons-carbon-tax

The purpose of a carbon tax

The purpose of a carbon tax is to internalise this externality. What this means is that the final price of the good should include the external costs and not just the private cost. It is similar to the ‘polluter pays principle.‘ – which was incorporated into international law at the 1992 Rio Summit. It simply means those who cause environmental costs should be made to pay the full social cost of their actions.

Diagram to show welfare loss of a negative externality

negative-externality-id

This diagram shows that in a free market (without any tax), we get overconsumption (Q1) of carbon, leading to a welfare loss to society.

Social efficiency with Carbon Tax

tax-on-negative-externality

Explanation:

5 0
3 years ago
Which of the following accurately describe some aspect of gravitational waves?
IrinaK [193]

Answer:

- the first direct detection of gravitational waves came in 2015

- gravitational waves are predicted to travel through space at the speed of light

-  the existence of gravitational waves is predicted by Einstein's general theory of relativity

Explanation:

The gravitational waves are waves that are produced by the objects, and depending on the mass of the object they can be stronger or weaker in their influence.

These waves have been in the minds of the scientists for more than a century now, with Einstein predicting them in his theory of relativity. The only problem with these waves was that there was no proof of them. The proof finally came in 2015 when these waves were detected from the first time, with two black holes to be thanked for that as they were the source of them.

These waves are predicted to be able to travel with the speed of light through space when they have small amplitudes.

6 0
3 years ago
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