Page 1 - LAYERS OF ATMOSPHERE AND ITS IMPORTANCE
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CHAPTER 13 – AIR AND WATER
TOPIC- LAYERS OF ATMOSPHERE AND ITS IMPORTANCE
OBJECTIVE QUESTIONS
Q.1 Fill in the blanks:
a) The thick layer of air that surrounds the Earth is known as_______
b) The atmosphere helps in recycling water through the ______
c) The ozone layer is found in the _______of the atmosphere
d) The layer of atmosphere where we live in______
Q.2. Name the layer of the atmosphere where you observe the following
a) Extends to 10-15km above the Earth’s surface
b) Layer is free from weather changes
c) Ozone abundant here
d) Thin air with low temperature
e) Meteors burn here in the Earth’s atmosphere
f) Shooting stars are seen here
g) Ionosphere present here
h) Artificial satellites found here
i) Long distance radio communication possible because of this
layer
j) Upper limit of the earth’s atmosphere
Q.3. State true or false. Rewrite the incorrect answers correctly:
a) We can listen to radio programs because of the exosphere.
b) The atmosphere helps meteoroids from hitting the surface of earth.
c) Ionosphere is a part of thermosphere.
