What are biomedical wastes?</h2></div>

Planting of trees, shrubs and others in between crop plants for stabilisation of soil is<span><br> </span…

BOD stands for</h2></div>

What is the meaning of environmental protection?</h2></div>

Increasing amount of <span class="katex"><span class="katex-html" aria-hidden="true&qu…

How do automobiles fitted with catalytic converters reduce air pollution? Suggest the best fuel for such vehicles.</h…

<span>What is the importance of oxygen in water for living organisms?</span></h2></div>

What is a small glasshouse used for growing plants especially during winter called?