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15
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How do we use microbiological indicators to determine if water is safe or dangerous to drink?
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Non-living things
Abiotic
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Does the greenhouse effect occur naturally?
Yes
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What is air made of? (chemical composition)
N-78%, O - 21%, 1% other(CO2, hydrogen, neon, argon)
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15
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Explain the Enhanced greenhouse effect.
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How do CFC's damage the ozone layer?
CFC break down, Cl reacts with O3 to form 02 and ClO
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What are two major air pollutants?
sulfur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide
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heart
Other team wins 25 points!
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star
Double points!
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gift
Win 5 points!
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thief
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How does acid rain form?
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List 2 heavy metals.
mercury, lead, copper, zinc, cadmium, nickel
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trap
No points!
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fairy
Take points!
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fairy
Take points!
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thief
Give points!
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How does acid shock occur?
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eraser
Reset score!
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rocket
Go to first place!
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gift
Win 25 points!
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baam
Lose 20 points!
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baam
Lose 15 points!
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gift
Win 10 points!
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rocket
Go to first place!
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banana
Go to last place!
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15
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Chemical A has a LD50 of 56 mg/kg, while chemical B has LD50 if 84 mg/kg. Which has a higher toxicity?
Chemical A
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15
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List 3 effects of climate change on the planet.
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