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galben [10]
2 years ago
9

Describe how scientists make inferences on whether water is polluted or not

Biology
1 answer:
Rufina [12.5K]2 years ago
8 0

Answer: Water that's safe to drink should ideally be clear with no odor or funny taste. One way to tell if water is contaminated is to look for turbidity, or cloudiness. While cloudy water isn't necessarily dangerous to your health, it could signal the presence of unsafe pathogens or chemicals.

Explanation:

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Based on what you know about natural selection, which of the following must be true if evolution is the explanation for what the
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Answer:

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The beaks of individual birds can change depending on what food is available.

Over time, individuals can evolve to better fit the environment by changing heritable traits.

Beak depth and length must affect survival and/or reproduction of birds.

 Beak depth and length must be heritable.

Beak depth and length must show variation among individuals of a single species.

8 0
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Every day, Americans use less than 3.5 gallons of water to cook, clean, flush toilets, and bathe.
Marianna [84]
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3 years ago
The mass number of an atom is:
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Answer:

The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.

Explanation:

8 0
2 years ago
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What is a tiny cavity in a living cell called
vaieri [72.5K]

I believe the answer you are looking for is a cell cavity. Also known as: Cavity of cell, or cell space

4 0
3 years ago
Which biologically-based therapy uses a drug to remove toxic amounts of
AURORKA [14]

Answer:

Your answer is C) Chelation therapy

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Chelation therapy is a method for removing heavy metals, such as mercury or lead, from blood. It's one of the standard treatments for many types of metal poisoning. Hope this helped :)

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