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July 26th
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The clean air is called…..
oxygen
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The dirty air is called…
pollution
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We must all help stop __________. (an increase in the worlds temperature)
global warming
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This _______ makes cars. (a place where products are made by machines )
factory
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What do people breathe?
air
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_______ can be seen in the early mornings in cities.
Smog
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