In a wet summer we often hear the question 'Where does all the rain come from?'. Gerd Sommerhoff describes the circulation of water in nature and shows that, where rain is concerned, what comes down must first have gone up.
for Schools
(to 10.25)
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In a wet summer we often hear the question 'Where does all the rain come from?'. Gerd Sommerhoff describes the circulation of water in nature and shows that, where rain is concerned, what comes down must first have gone up.
for Schools
(to 10.25)
