3 years ago

Explain the methods of water purification.Hurry up!!

1 answer:

8 0

Answer:

There are several methods used in the water purification process, which include: (1) physical processes, such as filtration, sedimentation, or distillation; (2) biological processes, such as sand filters, active carbon; (3) chemical processes, such as flocculation, chlorination, the use of ultraviolet light. (Hope this helps:) )

Explanation:

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galina1969 [7]

Answer:

Independent variable: different amounts of second-hand smoke

Explanation:

The independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response.

In this question, a test is being carried out to determine the health effects of different amounts of second-hand smoke on one-year-old hamsters. Based on this, the independent/manipulated variable is the DIFFERENT AMOUNTS OF SECOND-HAND SMOKE because it is the variable being changed.

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If RR is the genotype for the phenotype of right handedness, what would be the phenotype of rr?

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Answer: left handedness

Explanation:

It would be the opposite of RR

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