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Card 6

Front

Step 6 of atmosphere creation

Back

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Card 7

Front

what is the percentage of oxygen in the air

Back

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Card 8

Front

what is the percentage of nitrogen in the air

Back

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Card 9

Front

what is the percentage of carbon dioxide in the air

Back

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Card 10

Front

what is the percentage of noble gases in the air

Back

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Card 11

Front

What is made from electrolysis of water

Back

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Card 12

Front

Hydrogen is made at the...

Back

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Card 13

Front

Oxygen is made at the...

Back

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Card 14

Front

Twice the volume of... as... is made, this is because the formula of water is

Back

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Card 15

Front

What is the carbon cycle for over millions of years

Back

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