Study Fig. 6, which shows changes in the global temperature from 1860 to 2000.

1. (a)Complete the paragraph below by circling the correct answers. The first one has been done for you. From 1860 to 1920, the global temperature was decreasing /(fluctuating)/ increasing around the average for the 19th century. From 1920 to 1940, the global temperature was decreasing / fluctuating / increasing. From 1940 to 1980 the global temperature was fluctuating at 0°C / +0.25°C / +0.35°C. From 1980 to 2000 the global temperature was decreasing / fluctuating / increasing by +0.4°C / +0.6°C / +0.8°C.[4]
2. (b)(i)Study Fig. 7, which shows some possible consequences of global warming. From Fig. 7 only, how might global warming affect the oceans?[2]
3. (b)(ii)From Fig. 7 only, why might global warming indirectly affect crop yields?[1]
4. (b)(iii)Suggest how global warming may cause tropical diseases to spread to a greater area.[1]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.