ozone thinning is mainly due to the increase of CFC’s. CFC’s stands for carbonized fluorine consumers

What id the primary human cause of the global warming a. storage of nuclear fuel rods b. burning of fossil fuels c. building of high-density housing d. violent conflicts over natural resources

What can happen to solar radiation when it enters earth’s atmosphere? check all that apply. it is absorbed by earth. it is reflected by clouds. it is reflected by glacial ice. it is condensed into visible light. it is amplified by water molecules.

Why are there increasing problems with construction in permafrost regions? a. the existence of black spruce trees b. global warming c. booming arctic populations d. longer freeze-thaw cycles