Q 1. Which is the world’s highest waterfall?
a. Angel Falls, Venezuela
b. Tugela Falls, South Africa
c. Three Sisters Falls, Peru
d. Niagara Falls, Canada
Q 2. Which gas is present in largest amount in air?
a. Oxygen
b. Carbon dioxide
c. Argon
d. Nitrogen
Q 3. What is the composition of oxygen in the atmosphere?
a. 78%
b. 21%
c. 8%
d. 0.8%
Q 4. Which gas is produced by green plants during photosynthesis?
a. Carbon dioxide
b. Ozone
c. Oxygen
d. Nitrogen
Q 5. The air we breathe, exists in which layer of atmosphere?
a. Stratosphere
b. Troposphere
c. Thermosphere
d. Mesosphere
Q 6. In which layer of atmosphere, ozone layer is present?
a. Stratosphere
b. Troposphere
c. Thermosphere
d. Mesosphere
Q 7. Which is the highest layer of atmosphere in which airplane can fly?
a. Stratosphere
b. Troposphere
c. Thermosphere
d. Mesosphere
Q 8. In which layer of atmosphere, the radio waves transmitted from earth are reflected back to earth?
a. Stratosphere
b. Troposphere
c. Thermosphere
d. Mesosphere
Q 9. Which of the following instruments is used to measure temperature?
a. Thermometer
b. Barometer
c. Rain gauge
d. Wind wane
Q 10. Which of the following instruments is used to measure atmospheric pressure?
a. Thermometer
b. Barometer
c. Rain gauge
d. Wind wane
Answers:
Q1.(a), Q2. (d), Q3. (b), Q4. (c), Q5. (b), Q6. (a), Q7. (a), Q8. (c), Q9. (a), Q10. (b)
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