<span>Deforestation is caused due to</span><br> </h2></div>

What is the reason for the increase in the BOD?

Explain the effect on the characteristics of a river when urban sewage is discharged into it.<br> </h2></…

Water pollution can be caused due to:</h2></div>

Organic farming does not include ________.</h2></div>

<span>The hard mineral crust formed at or near the surface of soil is known as</span></h2></div>

.......... is a farming system with minimal or no use of chemicals such as fertilizers, herbicides, pesticides.</h2&g…

Example for a physical pollutant<span><br> </span></h2></div>