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Biology, 22.06.2019 10:30
A(n) is a molecule influences the way that a molecule reacts.
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Biology, 22.06.2019 23:00
Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. there are pros and cons to using either chlorine or uv radiation to kill harmful microorganisms. what is one reason chlorination would be preferred over ultraviolet radiation? a) chlorine only eliminates visible impurities and is ineffective against microorganisms. b) chlorine not only kills bacteria but provides a residual effect on returning microorganisms. c) uv radiation can be used only to treat drinking water and is ineffective in treating waste water. d) ultraviolet radiation is more effective
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Biology, 23.06.2019 03:00
What adaptation does this plant have to thrive in a dry and arid environment?
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Biology, 23.06.2019 03:00
Abird is flying in the air at a 4 m/s. if the mass of the bird is 7kg what is it’s kinetic energy
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Process of photosynthesis...
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