Here's a problem to solve: Surface mining is a type of mining that is done at the surface of Earth. In addition to supplying valuable minerals to industry, surface mining might also

Among the 4 following options, which is the correct answer?

- A: discourage landfills.
 
- B: increase Earth's surface area.
 
- C: eliminate groundwater pollution.
 
- D: create recreational ponds and lakes.
 