1.
Mesosphere and thermosphere are collectively known as
2.
It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of:
3.
Region/regions of the atmosphere where temperature decreases with altitude is/are
4.
The brown haze of photochemical smog is largely attributable to
5.
UV radiations bring about
6.
Solid component of the earth consisting of soil, rocks and mountains is called
7.
Which of the following is not an air pollutant?
8.
Which of the following is not considered to be a pollutant?
9.
Which one of the following is not an application of green chemistry?
10.
Gradual warming of the atmosphere due to trapping of long wave radiations is called: