Biology, 25.06.2021 20:50, tyeni2crazylolp7a3hk
Which statement is a testable scientific hypothesis? A. Fern plants grow faster in moist soil than in dry soil. B. All people at the meeting agreed that it was time for lunch. c. Careful analysis shows that cats are nicer house pets than dogs. D. Classical music is the most important kind of music.
Answers: 2
Biology, 22.06.2019 23:00, sanchezp0821
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
Biology, 22.06.2019 23:50, brianwins07
When a plant is genetically identical to its parent plant what is this called
Answers: 1
Which statement is a testable scientific hypothesis? A. Fern plants grow faster in moist soil than i...
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