What is the main factor of sharply dropping the amount of ozone in the atmosphere?<br> </h2></div>

Mention how e-waste is produced and disposed off. Write the solution for its treatment.</h2></div>

Radioactive fall out contaminates</h2></div>

Solid waste serve as useful resource for providing energy for our industries.</h2></div>

Ozone in the stratosphere is depleted by</h2></div>

Global warming can be controlled by</h2></div>

Polluting strength of sewage is characterised by its</h2></div>

What does solid waste consist?<span><br> </span></h2></div>