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1 markAtmosphere and Weather Systems

CAPE Geography Unit 2 · 2015 · Paper 2 · Question 2(a)(iii)

Refer to Figure 1 showing changes in temperature and concentration levels of carbon dioxide (CO2) from 160 000 years ago to 1990.

How much cooler was the Earth's temperature at 20 000 years before 1990?

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Other parts of this question

  1. 2(a)(i)Approximately how many years ago was the world temperature similar to the temperature in 1990?[1 mark]
  2. 2(a)(ii)What was the LOWEST concentration levels of carbon dioxide recorded up to 1990?[1 mark]
  3. 2(a)(iv)What term is used to describe the relationship between temperature and carbon dioxide as shown in the graph?[1 mark]
  4. 2(b)Distinguish between 'absolute humidity' and 'relative humidity'.[4 marks]
  5. 2(c)Describe the two natural processes by which raindrops are formed.[6 marks]
  6. 2(d)Discuss FOUR factors that influence variations in atmospheric pressure on the Earth's surface.[16 marks]

More practice: the rest of this paper · more Atmosphere and Weather Systems questions · all CAPE Geography Unit 2 past papers