The factor responsible for depletion of ozone layer is</h2></div>

What is sustainable agriculture?</h2></div>

<span>Advantages of organic farming is (are)</span></h2></div>

Hatchlings grown in nursery ponds form :</h2></div>

________ is e-waste.<br> </h2></div>

Name two international efforts to check ozone depletion</h2></div>

BOD of wastewater is amount of</h2></div>

Which element is cause of itai itai disease?</h2></div>