THE CAUSE OF RAIN.
Warm air is capable of holding more moisture in suspension that is cold air. When by any means a layer or current of warm air saturated with moisture is suddenly cooled a portion of tne vapour falls as rain. In mountainous countries this'cooling down of warm, damp air is generally effected by its coming into "contact with the chilly regions of the mountain tops. On the highest peaks the intense cold produces not rain hut snow," which bo constantly as to. 'account for the snowy caps worn by high mountains all the year round. Insome parts of the world (Peru, for instance) there are regions at the base of mountain ranges where rain never falls. This means that the prevailing winds having deposited their moisture on the tops of the mountains pass over it as dry winds, carrying.no rain for-the ■valleys,v/-*.«-? / ■ ■■ u:■
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Auckland Star, Volume LXI, Issue 33, 8 February 1930, Page 15 (Supplement)
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146THE CAUSE OF RAIN. Auckland Star, Volume LXI, Issue 33, 8 February 1930, Page 15 (Supplement)
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