Need help matching these to the correct pair

Explain how scientists use geologic time to determine the age of landforms.

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

Which of the following may one conclude from a map that shows the average ph value of rainfall in the u. s.? acid rain is a more serious problem on the east coast. acid rain falls equivalently across the continental u. s. there are more factories on the west coast. the midwest has fewer forests than the rest of the u. s.