Which kind of ecosystem does the photograph most likely show?
A River
B. Lake
C Swamp<...
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Biology, 21.06.2019 21:30
The fauces connects which of th following structures to the oropharynx
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Biology, 22.06.2019 14:00
How far down have geologists drilled holes ? (science) a: 3.8 km b: 12 km c: 100 m d: 1200 km
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Biology, 22.06.2019 18:00
Which three statements represent the benefits of performing experiments using computer simulations?
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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
Answers: 2
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