Question

what are the two main types of mining?
human mining and animal mining
subsurface mining and surface mining
underwater mining and open - pit mining
placer mining and strip mining

Explanation:

Mining is categorized based on the location of the mineral deposit relative to the Earth's surface. Surface mining is used when minerals are near the surface, involving methods like open - pit and strip mining. Subsurface mining is for deeper deposits, using tunnels and shafts. The other options are incorrect as they either refer to non - standard classifications (human/animal mining) or are specific methods within the main types (underwater mining is a specialized form, placer mining is a type of surface mining).

Answer:

subsurface mining and surface mining