Answer:
D
Explanation:
Population of North America: 579 million
Population of South America: 422.5 million
Combined = 1.1 billion
The density of air in a limited amount of space.
Answer:
Soil erosion is the removal of soil from a position on the landscape. The two main agents of soil erosion are wind and water. Because the climate of the Great Plains is relatively dry, and strong winds are common, wind erosion is widespread throughout the region. ...
Explanation: