wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

0Air class 7 chapter 4 (specialised)

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the maximum gas present in the air?

a)

Carbon di oxide

b)

Argon

c)

Dust

d)

Nitrogen

2.

Which is the first layer of atmosphere?

a)

Troposphere

b)

Mesosphere

c)

Stratosphere

d)

Thermosphere

3.

Which gas released in the atmosphere creates a greenhouse effect trapping the heat?

a)

Carbon dioxide

b)

Oxygen

c)

Nitrogen

d)

All of these

4.

Excess amount of CO2 is responsible for

a)

global cooling

b)

global warming

c)

both (a) and (b)

d)

none of these

5.

What are the important objects for survival of plants and animals?

a)

Rainfall

b)

Sun light

c)

Oxygen

d)

All of these

6.

Which is the important gas used by human beings for breathing?

a)

Nitrogen

b)

Carbon dioxide

c)

Oxygen

d)

Sodium chloride

7.

When the air is heated it becomes?

a)

Lighter?

b)

Heavier?

c)

Colder?

d)

None of these

8.

What is the average height of the troposphere?

a)

3 km

b)

9 km

c)

4 km

d)

13 km

9.

As we go up in troposphere layer of the atmosphere the pressure

a)

increases

b)

decreases

c)

no change

d)

all of these

10.

Which one of the following gases protects us from harmful sun’s rays?

a)

Ozone

b)

Nitrogen

c)

Carbon dioxide

d)

Oxygen

11.

Which of the following are part of weather forecast in the newspapers?

a)

Temperature

b)

Humidity

c)

Time of Sunset

d)

All of These

12.

Which element of weather is measured in degree Celsius?

a)

Temperature

b)

Pressure

c)

Wind

d)

Gravity

13.

The water boils at

a)

10°C

b)

50°C

c)

75°C

d)

100°C

14.

Where is the air pressure highest?

a)

Moon

b)

Sea Level

c)

Stratosphere

d)

Exosphere

15.

What is very hot wind called?

a)

Loo

b)

Cool breeze

c)

Monsoon air

d)

Trade wind

16.

Which one of the following is a local wind?

a)

Sea breeze

b)

Trade wind

c)

Monsoon wind

d)

None of these

17.

Rain, snow sleet or hail are the different forms of:

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

None of these

18.

In which layer all weather phenomena occurs?

a)

Troposphere

b)

Exosphere

c)

Mesosphere

d)

Thermosphere

19.

In which direction the wind blows constantly throughout the year in particular direction?

a)

Permanent wind

b)

Local wind

c)

Seasonal wind

d)

None of the above

20.

Which one of the following is local wind?

a)

Sea breeze

b)

Trade wind

c)

Monsoon wind

d)

All of these