Question

______ store electronics that are no longer useful.
a. e-waste landscapes
b. surface mining pits
c. landfills
d. conflict minerals

Explanation:

Landfills are areas where various types of waste, including electronics that are no longer useful (e - waste which can be disposed of in landfills), are stored. E - waste landscapes is not a standard term for waste storage. Surface mining pits are related to mining operations and not for storing waste. Conflict minerals are minerals that are mined in war - torn areas and have nothing to do with storing waste.

Answer:

C. Landfills