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Identify one way Ultra Violet Rays can be harmful to humans? Thank you so much!
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Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.
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15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
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What are the trends and exceptions to the trends in electron affinity?
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Chemistry, 23.06.2019 08:30
Of the following elements, which is the least reactive? a. c b. h c. li d. he
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Identify one way Ultra Violet Rays can be harmful to humans? Thank you so much!...
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