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Year 8 Topic 7 Earth Part 2 Earth's Climate

Total questions: 12

Worksheet time: 5mins

Name
Class
Date
1.

Which gas forms 78% of Earth's atmosphere?

a)

Oxygen

b)

Nitrogen

c)

Carbon Dioxide

d)

Argon

2.

Which gases are classed as greenhouse gases? (Choose two options)

a)

Carbon Dioxide

b)

Oxygen

c)

Nitrogen

d)

Methane

3.

Describe the trend shown in the graph.

a)

The amount of carbon dioxide is increasing.

b)

The amount of carbon dioxide is decreasing.

c)

The amount of carbon dioxide is staying the same.

d)

The temperatures of the Earth is increasing.

4.

The greenhouse effect warms the Earth.

a)

False

b)

True

5.

Which of the following processes does NOT add carbon to the atmosphere.

a)

Burning Fossil Fuels

b)

Deforestation

c)

Photosynthesis

d)

Dissolving in sea water.

6.

Which of the following processes does NOT remove carbon from the atmosphere.

a)

Respiration

b)

Photosynthesis

c)

Dissolving in Oceans

d)

Formation of Sedimentary Rock

7.

Which two are consequences of climate change?

a)

More crops can be grown.

b)

Melting of ice caps causing sea levels to rise.

c)

Extinctions of animals and plant species.

d)

Everywhere on Earth will get hotter and drier.

8.

How does an increase in carbon dioxide affect global temperature?

a)

decreases

b)

increases

c)

does not affect temperature

d)

temperature stays the same

9.
Increased carbon dioxide may cause global warming by trapping more ____________ in the atmosphere.
a)
water
b)
gases
c)
heat
d)
water vapor
10.
Worldwide, temperatures have been increasing for more than 100 years.  Is this evidence of global warming?
a)
yes
b)
no
11.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
12.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying