Air Pollutants, their Sources and Effects | Environmental Science Notes

 

Practice Exam Questions:

1. Which of the following species attacks hemoglobin to form carboxyhemoglobin thereby causing poisonous effect?

a)CH3

b) CO 

c) CO2 

d) CF2Cl2

Ans: b) CO 

2. Which of the following is a greenhouse gas?

a)N2

b) O2 

c) He

d) O3

Ans: d) O3

3. According to Central Pollution Control Board (CPCB), which particulate size in diameter in micrometer of the air pollutants is responsible for greatest hazard for human health ?

a)1.0 or less

b) 5.2-2.5

c) 2.5 or less

d) 1.5 or less

Ans: c) 2.5 or less