The main impact of ozone on life on the Earth's surface is to Group of answer choices provide oxygen for the atmosphere reduce ultraviolet solar radiation serve as a nucleus for cloud formation act as a lid preventing gases from escaping initiate violent storms

What is the reason for the “scramble for africa”?

What was the most difficult obstacle to overcome in the creation of an autonomous state after indian independence was achieved? a british willingness to go to war to retain the region b. religious differences between hindus and muslims c. ethnic differences between tribal regions d. indian princes' inability to decide on a format of government

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