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15
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________________ could increase the amount of oxygen in the air.
Planting more trees.
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15
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Animals use oxygen for _____________.
breathing
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15
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Burning Fossil Fuels can produce ...
carbon dioxide
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seesaw
Swap points!
Oops!
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gift
Win 20 points!
Okay!
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shark
Other team loses 15 points!
Okay!
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banana
Go to last place!
Oops!
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trap
No points!
Oops!
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star
Double points!
Okay!
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rocket
Go to first place!
Okay!
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baam
Lose 20 points!
Oops!
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lifesaver
Give 20 points!
Oops!
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fairy
Take points!
5
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20
25
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fairy
Take points!
5
10
15
20
25
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baam
Lose 20 points!
Oops!
15
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Why is the CO2 and O2 cycle considered to be a cycle?
there is a continuous exchange of gases
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15
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A set of events that happen over and over.....
cycle
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thief
Give points!
5
10
15
20
25
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seesaw
Swap points!
Okay!
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shark
Other team loses 20 points!
Okay!
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banana
Go to last place!
Oops!
15
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What is carbon dioxide used for?
plants use it to make their food
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15
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A gas produced by animals during respiration that plants use for photosynthesis.
carbon dioxide
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15
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If all the trees on Earth were destroyed, what would be the effect on humans?
there would be a lack of oxygen
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15
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A gas that is produced by plants during photosynthesis that animals use for respiration.
oxygen
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15
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Plants and animals are interdependent of each other. is this statement true or false?
true
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15
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Which type of organism gets its energy directly from the Sun?
producer (plants)
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15
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The process in which plants use energy from the sun to make their own food is called .....
photosynthesis
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