Online Test of Chapter – 4 Air Test 1 | Geography Class 7th Social Science (S.St)
Q. 1. Which is the most important layer of the atmosphere?
a. Troposphere
b. Thermosphere
c. Mesosphere
d. None of these
Q.2. What is responsible for the excess of CO2?
a. Global warming
b. Global cooling
c. Both (a) and (b)
d. None of these
Q.3. What is the result when the air is heated?
a. Heavier
b. Lighter
c. Colder
d. Warmer
Q.4. Stratosphere contains a layer of which gas?
a. Nitrogen gas
b. Ozone gas
c. Helium gas
d. None of these
Q.5. In which layers all weather phenomenon occurs?
a. Troposphere
b. Stratosphere
c. Thermosphere
d. Mesosphere
Q.6. As we go up in the layers of the atmosphere what is the effect in the pressure?
a. Increases
b. Decreases
c. Remains the same
d. All of these
Q.7. In which direction the wind blows constantly throughout the year in particular direction?
a. Permanent winds
b. Local winds
c. Seasonal winds
d. Both (a) and (b)
Q.8. Which one of the following is a local wind?
a. Sea breeze
b. Trade wind
c. Monsoon wind
d. None of these
Q.9. Which of the following gases protects us from harmful sun rays?
a. Carbon dioxide
b. Nitrogen
c. Ozone
d. All of these
Q.10. Which of the following layers of the atmosphere is free from clouds?
a. Troposphere
b. Stratosphere
c. Mesosphere
d. None of these
[WpProQuiz 521]