A. The map shows annual precipitation (rainfall) in millimetres throughout Ireland - Junior Cycle Geography - Question A - 2007
Question A
A. The map shows annual precipitation (rainfall) in millimetres throughout Ireland. The diagram shows the movement of air blowing in from the sea over a mountain.
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Worked Solution & Example Answer:A. The map shows annual precipitation (rainfall) in millimetres throughout Ireland - Junior Cycle Geography - Question A - 2007
Step 1
What is the annual rainfall at Dublin City?
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Answer
The annual rainfall at Dublin City is less than 800 mm, as indicated by the map.
Step 2
What name is given to lines on maps which show places of equal precipitation?
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Answer
The lines on maps that show places of equal precipitation are called isohyets.
Step 3
Explain why the place labelled X on the diagram could be expected to have higher precipitation than the place labelled Y.
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The place labelled X is on the windward side of the mountain where moisture-laden winds rise and cool, forming rain. In contrast, the place labelled Y is in the rain shadow, where the winds descend and absorb moisture, leading to lower precipitation.
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