Question

4. How are acid rains caused?​

Answer 1

Answer:

when compounds like sulphur dioxide and nitrogen oxides are released in air. these substance can raise very high temperature into atmoshere . where they mix with water and oxygen and with other chemicals to form more acidic pollutants , when rain falls is known as acid rain

Answer 2

Answer:

the harm ful substances like co,co2,snitrogen dioxide goes in the form of water vapour by mixing with water in the process of evaporation.

Explanation:

and the main cause is using pesticides and water pollution