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Card 6

Front

What is the use and alternative synthetic product of wood?

Back

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Card 7

Front

What is potable water?

Back

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Card 8

Front

What will water from natural sources always contain?

Back

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Card 9

Front

Describe the treatment of water from a reservoir.

Back

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Card 10

Front

What can be used instead of the chlorine?

Back

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Card 11

Front

How can we make seawater pure?

Back

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Card 12

Front

What is the problem with this and why?

Back

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Card 13

Front

What is flash distillation?

Back

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Card 14

Front

What is another way to separate the water from salts?

Back

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Card 15

Front

What is the process of this?

Back

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