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?
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Biology, 21.06.2019 19:00
The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.
Answers: 1
Biology, 22.06.2019 11:00
When ash and dust begin to settle on the ground, they eventually become compacted by
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Biology, 22.06.2019 14:30
If 360 joules of work are needed to move and create a distance of 4 m what is the weight of the crate
Answers: 1
Biology, 23.06.2019 00:00
Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?
Answers: 2
Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radia...
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