The exposed portion of the
continental crust underlying North America refers to Canadian Shield. The continental
crust is known as the North American Craton which consists of rocks from the
Archean dn Proterozoic eons and extends from Mexico to Greenland. Canadian
Shield also produces great resources that helped most humans for their economic
development. Because of the resources present in the Shield, it has a great
disadvantage to settlers. The primary obstacle to population growth in the area
is the presence of the bare rock, thin soils, muskeg and insects.
Geothermal energy is the energy drawn from the earth (geo) by way of the hot rocks that are found there. It is created as a result of the tremendous heating caused by the fission of radioactive elements in the earth's core.
Nobody has even gotten close to directly examining the interior of the Earth. So there is disagreement among geophysicists as to how heated the Earth's core is. However, the speed at which earthquake waves, sometimes known as "seismic waves," move can reveal a lot to scientists about the composition of the Earth.
It is thought that the Earth's core temperature ranges between 5,000 to 7,000 degrees Celsius. That is far colder than the sun's inside, yet roughly as heated as the sun's surface.
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Answer:
Africa is expected to continually increase its population
Explanation:
An onshore wind is any wind that blows from a body of water toward land. An offshore wind is any wind that blows from the land toward body of water.
Explanation:
The onshore winds are winds that form over larger bodies of water.
- These winds move from the body of water toward the land, usually during the day.
- The reason for that is that the bodies of water have lower temperature during the day, so the air above them is cooler, denser, so it moves toward the less dense, warmer air over the land.
The offshore winds are winds that form over land.
- These winds move from the land toward a body of water, usually during the night.
- The land heats up faster than the water, but also cools off quicker than the water, so at night the land is cooler. Because of it, the air masses that form over the land are more dense, so they move toward the less dense air masses over the water bodies.
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