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20% of the area of the Southern hemisphere is land.
(b) Work out the ratio of the area of land to the area of water in the Southern hemisphere.
(Total for question = 4 marks)

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Answer: 20% : 80%

Step-by-step explanation:

     If 20% is land, that means 100% - 20% is not land. We will subtract;

100% - 20% = 80%

    The ratio asks for land to water;

20% : 80%

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