Which of the following scenarios illustrates an example of how environmental policies have resulted in the reversal of environmental damage? a. banning cfcs has resulted in the shrinking of a hole in the ozone above antarctica. b. proper regulation by ukrainian authorities prevented a catastrophe in chernobyl. c. new environmental policies have slowed the progress of climate change. d. banning certain fertilizers has reduced the rate of eutrophication around the globe.

Which of the following is an accurate description of the recent political history of the democratic republic of the congo? a. religious tensions have escalated into full-scale civil war a number of times since the belgians left the country in 1960. b. the political leader who gained power after the overthrow of a corrupt dictator was assassinated. c. the military leadership felt the country was stable enough, so they permitted democratic elections to take place. d. in 1990, a dictator seized and has held power ever since.