Environmental Science

61.Global warming is caused by-
a.GHGs
b.
c.CH4
d.NO2

Option”A” is correct

Global warming is caused by GHGs(Green house gases).

62.Warming in the stratosphere is mainly caused by:
a.
b.
c.
d.

Option”A” is correct

The Primary Cause of Global Warming is Ozone Depletion. Atmospheric temperature decreases with altitude in the troposphere and increases with altitude in the stratosphere.

63.Major consumer of wood from forest is ___________
a.
b.
c.
d.none

Option”B” is correct
64._________ is the 12th Mega Biodiverse Country in the world.
a.
b.America
c.China
d.

Option”A” is correct

India is one of the 12 mega biodiversity countries in the world.

65.Which plants die after flowering?
a.Lotus
b.Bamboo
c.Chrysanthemum
d.Butea

Option”B” is correct

Bamboo die after flowering.

66.This holds a planet’s atmosphere close to its surface:
a.Radiation
b.Gravity
c.
d.Moisture

Option”B” is correct

Our atmosphere is a mixture of gases that surround Earth. It is kept in place by the pull of Earth’s gravity. If Earth was a much smaller planet, like Mercury or Pluto, its gravity would be to weak to hold a large atmosphere.

67.During the afternoon the greatest temperature difference between the surface air and the air several meters above occurs on a:
a.
b.
c.
d.

Option”A” is correct

During the afternoon, the greatest temperature difference between the surface air and the air several meters above the ground occurs on a: clear, calm day.

68.
Ideal conditions for a strong radiation inversion:
a.
b.
c.
d.

Option”A” is correct

Ideal conditions for a strong radiation inversion: Clear, calm, dry, winter night.

69.Example of primary pollutant-
a.
b.
c.CO
d.

Option”D” is correct
70.
In a photochemical smog, which gas is an eye and mucous membrane irritant?
a.SO2
b.O3
c.CO2
d.N2O

Option”D” is correct
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