Impacts of global warming include all of the following except Select one: a. rising sea levels b. more human illness from vector born sources c. more volcanic eruptions d. more extreme weather Scientists have concluded that the recent increase in greenhouse gases during the last 130 years is primarily a result of Select one a. decay of plants. b. Widespread use of chemical fertilizers in agriculture. c. desertification. d. the excessive burning of fossil fuels by humans Environmental issues from coal arise mainly from burning it, where as extracting it from the earth presents relatively few problems. Select one: True False