3.2.1

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what is oxygen used for
needed for repiration and energy
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what is carbon dioxide used for
photosynthesis of plants, we eat plants and animals= carbohydrates
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what is nitrogen used for
Taken from air by plants through roots, turns into nitrates for proteins
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What is water vapour used for
essential to move water around, the water cycle
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COMPOSITION OF ATMOSPHERE
.
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GLOBAL CLIMATE CHANGE
.
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Card 2

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what is carbon dioxide used for

Back

photosynthesis of plants, we eat plants and animals= carbohydrates

Card 3

Front

what is nitrogen used for

Back

Preview of the front of card 3

Card 4

Front

What is water vapour used for

Back

Preview of the front of card 4

Card 5

Front

COMPOSITION OF ATMOSPHERE

Back

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