0653.C10.2.06 — Describe how the greenhouse gases carbon dioxide and methane cause global warming, limited to: (a) . the absorption, reflection and emission: past paper questions

Real questions on 0653.c10.2.06 — describe how the greenhouse gases carbon dioxide and methane cause global warming, limited to: (a) . the absorption, reflection and emission

The newest 8 of 8 written questions. Open one to see it on the real paper.

1. 0653/12 · October/November 2023 · Q25[1]

   Which gases are greenhouse gases?

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2. 0653/33 · October/November 2022 · Q5b(iii)[1]

   Carbon dioxide is a greenhouse gas. State the name of one other greenhouse gas.

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3. 0653/43 · October/November 2022 · Q8c[1]

   Car exhaust gases cause an increase in the concentration of carbon dioxide in the atmosphere. This causes an enhanced greenhouse effect. State one impact of an enhanced greenhouse effect.

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4. 0653/33 · May/June 2022 · Q2b[1]

   The student passes clean air through one sample of limewater. Then he blows air from his lungs through another sample of limewater, as shown in Fig. 2.1. clean air air from lungs limewater Fig. 2.1 Carbon dioxide from the student’s lungs turns the limewater milky within a few seconds. The clean air takes a long time to...

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5. 0653/33 · May/June 2021 · Q2b(iii)[1]

   Identify a greenhouse gas that is formed by the complete combustion of methane.

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6. 0653/42 · February/March 2021 · Q2e[2]

   Increased concentrations of carbon dioxide in the atmosphere cause environmental problems. Explain why.

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7. 0653/43 · May/June 2019 · Q2d[1]

   When fuels are burned, carbon dioxide is released into the atmosphere. State one possible negative effect of an increase in the concentration of carbon dioxide in the atmosphere.

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8. 0653/42 · February/March 2019 · Q5c(v)[1]

   The carbon dioxide produced in a blast furnace escapes into the atmosphere. Carbon dioxide is a greenhouse gas. State one possible effect of an increase in the concentration of carbon dioxide gas in the atmosphere.

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What examiners said

Stronger candidates stated methane as the greenhouse gas. Incorrect responses included nitrogen and oxygen.

— Examiner report, October/November 2022, 0653/33 Q5(b)(iii) (Cambridge)

Most candidates stated one impact of the enhanced greenhouse effect, usually global warming.

— Examiner report, October/November 2022, 0653/43 Q8(c) (Cambridge)

Some candidates were able to make the comparison between clean air and air from the candidate’s lungs to gain credit. Some statements were not accepted, for example ‘the candidate expired pure carbon dioxide’.

— Examiner report, May/June 2022, 0653/33 Q2(b) (Cambridge)