__________ is a biomedical waste.<br> </h2></div>

Which class of carbon compounds are responsible for the depletion of ozone layer at the higher level of the atmosphere?&…

Name the unit which is used to measure the thickness of ozone layer?</h2></div>

A lake with an inflow of domestic sewage rich in organic waste may result in</h2></div>

Air is a mixture of various gases. One of the gases is 21% part of the air and is essential for the survival of human be…

The worst enemy of ozone is</h2></div>

Which of the following are the colloidal materials present in domestic sewage?

A lake with an inflow of domestic sewage, rich in organic waste, may result in<br> </h2></div>