Atmosphere and climate — Question Bank (Cambridge) — Cambridge IGCSE Physics 0625 Revision Notes & Topical Questions

Cambridge Lower Secondary Stage 8

Question 1
Paper Ref: 0620/22_Summer_2012_Q32

Carbon dioxide and methane are ‘greenhouse gases’ which contribute to global warming.
Which process does not increase global warming?
burning fossil fuels
B_ decay of organic waste
C farming cattle for beef
D growing crops such as sugar cane

Options:
A
B
C
D
Correct Key: D

Question 2
Paper Ref: 0620/23_Summer_2025_Q31

Which statement describes how greenhouse gases increase global warming?
A
B
Cc
D
Greenhouse gases absorb thermal energy from the Sun, reducing the Earth’s temperature.
Greenhouse gases reflect thermal energy back into space, cooling the Earth’s surface.
Greenhouse gases absorb and re-emit thermal energy radiated from the Earth’s surface.
Greenhouse gases release thermal energy from the Earth into space.

Options:
A
B
C
D
Correct Key: C

Question 3
Paper Ref: 0620/22_Spring_2024_Q34

How do carbon dioxide and methane cause global warming?
A They emit the thermal energy they have absorbed back to the Earth.
They absorb the radiation directly from the Sun.
They increase thermal energy loss to space.
0 O WW
They reduce reflection of thermal energy from the Earth’s surface.

Options:
A
B
C
D
Correct Key: A

Question 4
Paper Ref: 0620/13_Summer_2020_Q29

Which two compounds are formed by the burning of fossil fuels and are atmospheric pollutants?
A carbon dioxide and hydrogen chloride
B carbon monoxide and sulfur dioxide
C oxides of nitrogen and water
D
oxides of nitrogen and ammonia

Options:
A
B
C
D
Correct Key: B

Question 5
Paper Ref: 0620/22_Spring_2024_Q35

Four statements about photosynthesis are listed.
1. Chlorophyll is required for photosynthesis.
The equation for photosynthesis is C,H,.O, + 60, — 6CO, + 6H,O.
Photosynthesis requires energy from light.
kh WwW N
Photosynthesis releases carbon dioxide, which can lead to climate change.
Which statements are correct?
A 1and3 B 1and4 C 2and3 D 2and4

Options:
A
B
C
D
Correct Key: A

Question 6
Paper Ref: 5129/12_Summer_2021_Q24

The global atmospheric concentration of carbon dioxide has increased in the last 200 years.
Which processes are causing this increase?
1 emissions from motor vehicles
2 photosynthesis
3 power stations using coal and oil
A 1,2 and3 B 1and2Z2only C 1and3only D 2and3only

Options:
A
B
C
D
Correct Key: C

Question 7
Paper Ref: 0620/11_Winter_2025_Q29

Which row identifies an adverse effect of the named pollutant?
air pollutant adverse effect
A methane global warming
B sulfur dioxide cancer
Cc particulates acid rain
D carbon monoxide photochemical smog

Options:
A
B
C
D
Correct Key: A

Question 8
Paper Ref: 0620/13_Summer_2016_Q32

Which statement about methane is not correct?
oO W
It is a greenhouse gas.
Itis an alkene.
It is formed by decomposition of vegetation.
It is used as a fuel.

Options:
A
B
C
D
Correct Key: B

Question 9
Paper Ref: 0620/11_Summer_2023_Q31

Some information about gas X is listed.
e §=Itis not present in clean, dry air.
e Itis not a cause of respiratory problems.
e Itis responsible for global warming.
What is X?
A carbon dioxide
carbon monoxide
methane
0 OO DW
nitrogen dioxide

Options:
A
B
C
D
Correct Key: C

Question 10
Paper Ref: 5129/12_Winter_2021_Q23

Octane (CgH;) is a fossil fuel.
A sample of pure octane is burned in a limited supply of pure oxygen.
Which atmospheric pollutants are produced?
carbon oxides of sulfur
monoxide nitrogen dioxide
A
no no yes
yes no no
yes no yes
yes yes no

Options:
A
B
C
D
Correct Key: B

Question 11
Paper Ref: 0620/22_Summer_2024_Q32

Some information about three gases, P, Q and R,, is listed.
« Gas P forms when magnesium reacts with dilute hydrochloric acid.
* Gas Q makes up 78% of the air.
¢« Gas R forms when gas P reacts with gas Q.
What is gas R?
A ammonia
methane
nitrogen dioxide
0 OO WW
water vapour

Options:
A
B
C
D
Correct Key: A

Question 12
Paper Ref: 0620/23_Summer_2012_Q30

Coal is a fossil fuel.
Which gas is not formed when coal burns?
oo DB
carbon dioxide
carbon monoxide
methane
sulfur dioxide

Options:
A
B
C
D
Correct Key: C

Question 13
Paper Ref: 0620/23_Winter_2010_Q36

Which information about carbon dioxide and methane is correct?
carbon dioxide methane
A | formed when vegetation decomposes v x
B | greenhouse gas v v
C | present in unpolluted air x x
D | produced during respiration x v

Options:
A
B
C
D
Correct Key: B

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