Global Climate (Edexcel GCSE Geography B)

Analyse the data in Figure 2.

Figure 2 Mean Antarctic temperatures and atmospheric CO₂ concentration over the past 200,000 years

i)

Describe the trends in mean Antarctic temperatures and CO₂ concentration as shown in Figure 2. Use numeric data in your answer.

(3)

ii)

Explain one natural cause of climate change.

(2)

Explain one way in which global atmospheric circulation determines the location of high rainfall (low pressure) areas.

You may use a diagram to help your answer.

Study Figure 1a which shows four locations in the African continent

Figure 1a

i)

Identify which one of the following is the location of an arid area.

(1)

ii)

Identify which one of the following statements describes the movement of air in a Hadley Cell?

(1)

iii)

Explain one role of ocean currents.

(2)

Food prices can be influenced by changes in climate. Study Figure 1b, which shows the changing global price of sugar and meat from 1990 to 2015.

Figure 1b

i)

Compare the changes in the price of meat and sugar between 1990 and 2015.

(2)

ii)

Explain one reason why climate change might affect the price of food.

(2)

Study Figure 1 which shows a climate graph for Timbuktu, Mali located 16°N of the equator.

Figure 1

i)

Identify which one of the following describes Timbuktu’s climate.

(1)

ii)

Calculate the annual temperature range in Timbuktu.

(1)

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Explain one reason why some areas are arid (have low rainfall).

Study Figure 3 which shows four projections about sea level rise from 2020 to 2100.

Figure 3

i)

Compare the highest and the lowest sea level projections.

(2)

ii)

Using data from Figure 3 explain two reasons for the range of projections shown.

(4)

Explain one way in which historical records provide evidence of past climate change.