Question

1. which is not a type of surface mining? a. placer mining b. mountaintop removal c. river stream mining d. open pit mining e. strip mining

Explanation:

Placer mining is an extraction method that uses water to separate heavy minerals from lighter materials. It is not a type of surface mining. Surface mining involves removing overlying soil and rock to access minerals. River stream mining, open pit mining, mountaintop removal, and strip mining are all types of surface mining.

Answer:

A. Placer Mining