Among the following, the one which is not a "green house gas" is:

Which one of the following is not a common component of photo-chemical smog?

Leakage of which gas was responsible for the Bhopal tragedy in $1984$?

Which of the following is one of the products of the ozonolysis of CFCs in the ozone layer in the atmosphere?

For your agricultural field or garden,you have developed a compost-producing pit. Discuss the process in the light of bad odour,flies,and recycling of wastes for a good produce.

Water pollution is caused due to