More cards in this set

Card 6

Front

When is the density highest?

Back

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Card 7

Front

When is the density lowest?

Back

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Card 8

Front

Which risks are there when the density is very high?

Back

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Card 9

Front

How is the worlds water divided?

Back

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Card 10

Front

What's the hydrological cycle?

Back

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Card 11

Front

Why is the hydrological cycle said to be a closed system?

Back

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