A) Suspended particulate matter can lead to respiratory problems like bronchitis and asthma.
B) Acid rain is mainly constituted by \[\text{S}{{\text{O}}_{\text{2}}}\]and \[\text{N}{{\text{O}}_{\text{2}}}\].
C) CNG is called a cleaner fuel as it burns completely.
D) Major greenhouse gases are CFCs. and hydrocarbons only.
Correct Answer: D
Solution :
The gases which trap the solar radiations and partially reflect back long wave heat radiations are called greenhouse gases. The various greenhouse gases are\[\text{C}{{\text{O}}_{\text{2}}}\],\[\text{C}{{\text{H}}_{4}}\], chlorofluorocarbons (CFCs), nitrous oxide, water vapours, etc.
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