Question

1. Name the following.
a) The layer of air that surrounds earth____________
b) The layer of the atmosphere where life exists___________
c) The layer of earth in which aeroplanes fly_____________
d) The layer of earth in which weather changes take place ________________
e) The method of purifying water by first evaporating impure water and then condensing the water vapour ______________
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Answer 1

Answer:

The layer of air that surrounds earth is atmosphere

The layer of the atmosphere where life exists is Troposphere

The layer of earth in which aeroplanes fly is stratosphere

The layer of earth in which weather changes take place is Troposphere

method of purifying water by first evaporating impure water and then condensing the water vapour is distillation

Answer 2

(a) The layer of air that surrounds earth → Atmosphere .

(b) The layer of the atmosphere where life exists → Troposhere .

(c) The layer of earth in which aeroplanes fly → Stratosphere  .

(d)  The layer of earth in which weather changes take place → Tropopshere  

(e)  The method of purifying water by first evaporating impure water and then condensing the water vapour → Distillation

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