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

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

The release of <span class="katex"><span class="katex-html" aria-hidden="true…

Vehicular standard based on European regulation was first introduced in .......... in India.</h2></div>

What amount of BOD indicates low water pollution?

Which one of the following is known as the slash and burn agriculture?

Commonly used radioactive isotopes in scientific research<span><br> </span></h2></div>

At which of the following places First Global Conference on depletion of Ozone layer was held?<span><br> &lt…