The table compares human population and carbon dioxide (CO2) levels in the atmosphere over time. How is the size of the human population and the amount of carbon dioxide (CO2) in the atmosphere changing?

Due to weather patterns, the effects of acid rain have been most severe in the northeastern United States, including New York State. What is one action that could be taken to reduce the amount of acid rain?

The graph shows average yearly temperatures for Earth from 1900 to 1990. Which is NOT a likely reason why this change occurred?

Manatees are mammals that live in the warm, clear water environment of Florida's shallow rivers. As a result of human activity and other changes in their surroundings, manatees are on the endangered species list and may one day be gone from Florida's rivers. Which human activity might lead to the extinction of manatees?

Which human activity would help reduce the amount of carbon dioxide in the atmosphere?

The usage of electricity in the United States has increased dramatically over the past 10 years. Most of this electricity is currently produced by burning fossil fuels. Which would NOT be a reason for this increased usage of electricity?

Which statement is best supported by the information shown in the diagram?