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Card 6

Front

What happens over time to their shells? Then what?

Back

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Card 7

Front

What happens to the limestone that's exposed to the air?

Back

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Card 8

Front

How is Nitrogen gas converted to Nitrate?

Back

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Card 9

Front

What does the Haber process do?

Back

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Card 10

Front

What is ammonia converted into?

Back

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Card 11

Front

How are plants used in the Nitrogen cycle?

Back

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Card 12

Front

What is the definition of Urea?

Back

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Card 13

Front

What is broken down by decomposers?

Back

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Card 14

Front

What is ammonia converted into?

Back

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Card 15

Front

What happens in waterlogged soil?

Back

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