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Chemistry, 22.06.2019 01:00, kangasc6124
Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d
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Chemistry, 22.06.2019 19:20, Lovelybunny321
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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Mathematics, 30.08.2019 19:00
Mathematics, 30.08.2019 19:00
History, 30.08.2019 19:00