Study Figure 3, a diagram showing the global pattern of air pressure and surface winds.
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Using Figure 3, which one of the following statements is true?
Shade one circle only.
Air sinks at the Equator.
The southeast trade winds blow from the Equator to 30° N and S.
High pressure occurs when the air is sinking.
Polar easterlies blow from 60° N and S towards the poles.
Using Figure 3, describe the link between air pressure and surface winds.
Suggest why areas close to the Equator usually have high rainfall.
Use Figure 3 and your own understanding.
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