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air and water

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

What is the percentage of Oxygen in air?

a)

70%

b)

21%

c)

20%

d)

78%

2.

The layer of atmosphere in which space shuttles orbit is called ______________.

a)

exosphere

b)

thermosphere

c)

stratosphere

d)

troposphere

3.

In which layer of the atmosphere is the ozone layer situated?

a)

Troposphere

b)

Mesosphere

c)

Stratosphere

d)

Thermosphere

4.

We do not sweat when it is humid.

a)

True

b)

False

5.

In this layer of the atmosphere, meteoroids slow down and burn up.

a)

Stratosphere

b)

Exosphere

c)

Mesosphere

d)

Troposphere

6.

The air is very thin in this layer of atmosphere.

a)

Exosphere

b)

Troposphere

c)

Stratosphere

d)

Mesosphere

7.

What is the percentage of nitrogen in the air?

a)

78%

b)

79%

c)

72%

d)

73%

8.

atmosphere consist _______

a)

stone

b)

fire

c)

air

d)

astroid

9.

water vapours in air are called

a)

rain

b)

sweat

c)

lake

d)

humidity

10.

__________ is like a blanket around the earth

a)

atmosphere

b)

moon

c)

sun

d)

astroids

11.

how many layers are there in atmosphere

a)

3

b)

6

c)

5

d)

7

12.

in which layer of atmosphere weathers are formed

a)

stratosphere

b)

troposphere

c)

mesosphere

d)

exosphere