What is Acid rain
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Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail
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What is the temperature of one mole of helium gas at stp?
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A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?
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Drug abuse will not lead to physical and psychological dependence. true or false ?
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