Impact of intensive farming on environment

Question 0

How does soil erosion occur?

Answer 0

Over grazing leads to soil erosion
Loss of protective vegetation
Hedges removed - destroys habitats and they work as wind breakers

Question 1

How does river pollution occur? (eutrophication)

Answer 1

Fertiliser can be wasted - dissolves in rain water - drains from soil into ponds, lakes and rivers - algae then grows rapidly covering the surface - stop light going through - dying plants broken down by bacteria - decay uses oxygen up - fish then die - eutrophication