Question

how fertiliser contribute in water polution?

Answer 1

Fertilizers and animal manure, which are both rich in nitrogen and phosphorus, are the primary sources of nutrient pollution from agricultural sources. Excess nutrients can impact water quality when it rains or when water and soil containing nitrogen and phosphorus wash into nearby waters or leach into ground waters.

Answer 2

fertilizer spoils ground water especially
when one use fertilizers the fertilizers go beneath the earth and mix with ground water and in this way water gets polluted