The statement "Ozone in the atmosphere is decreased by chlorofluorocarbons $(CF_2Cl_2)$" is:

Determine whether the following statements are true or false:
$(1)$ The lowest region of the atmosphere where all living organisms,including humans,reside is called the troposphere.
$(2)$ The troposphere extends up to a distance of $25 \ km$ from sea level.
$(3)$ The region between $10 \ km$ and $50 \ km$ from sea level is called the stratosphere.
$(4)$ The ozone layer that protects living organisms is located in the troposphere.

Which of the following is used as a green solvent?

How is the depletion of the ozone layer created in the atmosphere over Antarctica? Explain with reactions.

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.

Arrange the following greenhouse gases in the correct decreasing order of their contribution to global warming.