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The Atmosphere U3 L1

Total questions: 28

Worksheet time: 47mins

Name
Class
Date
1.

What is the Earth’s Atmosphere ?

a)

The solid layer surrounding Earth

b)

The liquid layer surrounding Earth

c)

The gaseous layer surrounding Earth

d)

The mixture of gases and small particles

2.

What is the most abundant gas in the Earth’s Atmoshpere?

a)

Oxygen

b)

Nitrogen

c)

Carbon Dioxide

d)

Water Vapor

3.

Which of the following is NOT a function of the Earth’s atmosphere .

a)

Protecting us from the Sun’s harmful rays

b)

Maintaining the right temperature range for life

c)

Providing oxygen for breathing

d)

Preventing the Earth from Rotating

4.

What are small particles found in the atmosphere

a)

Dust , Volcanic ash , sea salt , and smoke

b)

Oxygen , Nitrogen , and carbon dioxide

c)

Water Vapor , clouds , rain

d)

The ozone layer and the ionosphere

5.

What is the percentage of oxygen in the Earth’s atmosphere ?

a)

21%

b)

78%

c)

1%

d)

50%

6.

Explain the role of water Vapor in the Earth’s atmosphere

4 lines
7.

What are the three main layers of the Earth’s atmosphere ?

4 lines
8.

How does the ozone layer protect life on Earth ?

4 lines
9.

What is the greenhouse effect and how does it impact Earth’s temperature?

4 lines
10.

How does human activity affect the Earth’s atmosphere?

4 lines
11.

Which layer of the atmosphere contains the ozone layer

a)

Troposphere

b)

Stratosphere

c)

Mesosphere

d)

Thermosphere

12.

Where does the “Aurora Borealis” occur ?

a)

Troposphere

b)

Stratosphere

c)

Mesosphere

d)

Thermosphere

13.

In which layer does the temperature decrease as altitude increases

a)

Troposphere

b)

Stratosphere

c)

Mesosphere

d)

Thermosphere

14.

Which layer contains most of the atmosphere’s mass

a)

Troposphere

b)

Stratosphere

c)

Mesosphere

d)

Thermosphere

15.

Explain why the thermosphere feels cold even though temperatures can reach 1,500*C

4 lines
16.

Describe the difference between the troposphere and the stratosphere

4 lines
17.

What is the significance of the ozone layer ?

4 lines
18.

How does the atmosphere protect Earth from harmful solar radiation

a)

By reflecting all solar radiation

b)

By absorbing and reflecting some solar radiation

c)

By trapping all solar radiation

d)

By allowing all solar radiation to reach Earth’s Surface

19.

What is the greenhouse effect

a)

The process by which Earth’s atmosphere traps (absorbs) heat

b)

The process by which by which Earth’s atmosphere reflects all radiation

c)

The process by which the ozone layer absorbs UV radiation

d)

The process by which Earth’s atmosphere creates wind

20.

Which of the following is NOT a green house gas

a)

Water Vapor

b)

Carbon dioxide

c)

Nitrogen

21.

Explain how the ozone layer protects life on Earth

4 lines
22.

What is the primary function of the thermosphere

a)

Weather information

b)

Absorbing UV radiation

c)

Reflecting radio waves

d)

Protecting from meteoroids

23.

How does air pressure change with the altitude

a)

It increases

b)

It decreases

c)

It remains constant

d)

It fluctuates unpredictably

24.

What is that relationship between temperature and altitude in the stratosphere

a)

Temperature increases with altitude

b)

Temperature decreases with altitude

c)

Temperature remains constant

d)

Temperature fluctuates with altitude

25.

Explain the concept of air pressure and how it is affected by altitude

4 lines
26.

Describe the role of the thermosphere in protecting earth

4 lines
27.

What is the significance of the troposphere for earth or life

4 lines
28.

How does the greenhouse effect contribute to global warming

4 lines