How do ultraviolet rays coming from sun affect the living organisms?</h2></div>

Read the following statements and select the correct option.<div><br> Statement 1: Ozone layer present in th…

What is algal bloom?</h2></div>

Denitrification is caused by</h2></div>

Which chemical is a 'ozone' depleting solvent?<span><br> </span></h2></div>

Which of the following is the largest organic farm in India?</h2></div>

Planting of trees on barren land is called </h2></div>

Organic pollutants are discharged as a municipal sewage and<span><br> </span></h2></div>