You're right that volcanoes are out. We can find each of the abovementioned landforms in the USA, but about 50% of them are plains. They're specific for central USA and southern coast.
Answer: 2
How does the Earth create a magnetic field?
The Earth’s magnetic field is created by the rotation of the Earth and Earth's core. It shields the Earth against harmful particles in space. The field is unstable and has changed often in the history of the Earth.
The human population affects wildlife by causing the change of the wildlife.
<h3>How does human population affect wildlife?</h3>
Human population affects wildlife by causing changes or reduction of habitat so that it automatically reduces the population of animals and plants in the wild. There are lots of cases of poaching and over-exploitation of land that ultimately bring negative consequences, namely habitat destruction, animal extinction, which ends in ecosystem damage. For example, the wildlife change was occured when the various wild animals lose habitat because their original habitat has been shifted due to land exploitation.
In conclusion, the human population affects wildlife by causing the change of the wildlife.
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Karakum was created out of sandy river deposits