Name the city in our country where the entire public road transport runs on CNG.</h2></div>

Study the graph. Explain how is oxygen concentration affected in the river when sewage is discharged in it.</h2>&l…

In organic farming, farmers use <i>Penicillium</i>  for the solubilization of</h2></div&gt…

.......... is a farming system with minimal or no use of chemicals such as fertilizers, herbicides, pesticides.</h2&g…

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…

List any three human activities which would lead to an increase in the carbon dioxide content of air.</h2></div…

What is Air pollution? What are the main sources of air pollution? Write a few lines about each of them<span>.<…

"Some people say that city people do not create garbage. Cities are dirty because of slums". How do you feel a…