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Question 7
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(a) State four factors that promote weathering in the tropics.
(b) Explain the processes of mechanical weathering under the following:
- temperature changes;
- frost action.
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This question was not popular with the candidates and those who attempted it performed poorly. The factors that promote weathering in the tropics include:
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high temperature;
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sunshine;
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high humidity and heavy rainfall;
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plants’ litter and organic acids;
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nature of rock;
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wind action;
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ocean waves;
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roots of plants;
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burrowing animals.
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