Which of the following organism is likely to have more concentration of D.D.T in its body?</h2></div&g…

Given pie-diagram represents the relative contribution of various <span class="katex"><span class=&qu…

Who introduced the concept of organic farming?<br> </h2></div>

Snow blindness is caused due to </h2></div>

Scientists predicted, ecosystem would adversely affected by<span><br> </span></h2></div>

Multiple Choice Questions<br> Biochemical oxygen demand may not be good index for water bodies receiving effluents…

Which of the following is major source of water pollution?</h2></div>

When domestic sewage mixes with river water, __________<br> </h2></div>