Which climate region of china has the lowest population density, due to its harsh temperatures and terrain?

a. subarctic
b. subtropical
c. temperate
d. tropical

Which occurs when air is compressed? air molecules move slower. air temperature rises and air molecules move faster. air temperature decreases. air temperature decreases and air molecules move faster.

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

Which of the following types of nonrenewable fuel sources requires the storage of radioactive waste? a. coal b. nuclear c. solar d. oil