State three ways in which open cast mining affect the environment.

State three ways in which open cast mining affect the environment. (3 mks)

it causes land dereliction which causes the land to lose its natural beauty.
it causes the loss of productivity when loose soils, deficient of nutrients are left which cannot support agriculture
mining exposing the land to agents of erosion hence rendering the land unproductive
it leads to loss of biodiversity
it causes harm to people and organisms when they drown in deep ponds caused open cast