Air pollution Day7, MC501/301

The atmosphere is neutrally stable under the condition of

• a) ELR>ALR

• b) ELR<ALR

• c) ELR=ALR

• d) none of the above

Full

form of PAN is ,

• a) Permanent Account Number

• b) Peroxy Acetyl Nitrate,

• c)

  Peroxy Alkyl Nitrate,

• d) None of the above

Which one is not a primary pollutant?

• a) O₃,

• b) CO₂

• c) NO₂

• d) SO₂

During temperature inversion

• a) Temperature decreases with altitude

• b) Temperature increases with altitude

• c) Temperature remains same

• d) none of these.

Which pollutant combines with hemoglobin to inhibit carrying of oxygen?

• a)CO

• b) NO

• c) CO₂

• d) SO₂

Ozone is a pollutant when present in

• a) troposphere

• b) stratosphere

• c) mesosphere

• d) thermosphere

Which one is a greenhouse gas?

• a) CO

• b) H₂O (vapour),

• c)NO_2,

• d) SO₂