Strontium- 90 can enter human body parts in place of<span><br> </span></h2></div>

Plantation of saplings on a large scale is celebrated as:</h2></div>

Which one of the following is mainly responsible for depletion of ozone layer?<br> </h2></div>

Instead of fertilizers, organic farming uses<br> </h2></div>

Multiple Choice Questions<br> Global warming can be controlled by<br> </h2></div>

Which of the following is the main factor of water pollution?</h2></div>

What is the potential danger of greenhouse effect?</h2></div>

About how much in used or unwanted electronic items accumulates every year nationwide?</h2></div>