When compared to underground mining, why does surface mining have a larger impact on land ecosystems?(1 point) Responses
1 In surface mining, the overburden is less extensive. In surface mining, the overburden is less extensive.
2 Surface mining is more likely to contaminate area waterways. Surface mining is more likely to contaminate area waterways.
3 In surface mining, the land collapses easily after mining is complete. In surface mining, the land collapses easily after mining is complete.
4 In surface mining, large areas of land are completely cleared of vegetation and topsoil.