Which of the following waste contributes heavily to environmental pollution?

Environment is warmed up by</h2></div>

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

Elements can be diagonsed by</h2></div>

Ozone layer depletion is caused by</h2></div>

What is the toxic substance contained by typical electronic waste?</h2></div>

Ozone in stratosphere extends</h2></div>

Issue of PUC certificate can control</h2></div>