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neonofarm [45]
3 years ago
9

What best determines the health of a lake used as a source of freshwater?

Biology
2 answers:
miss Akunina [59]3 years ago
7 0
The number of pH, the closer the number it is from 7 the more fresh it is. If the pH is lower than 7, then it's acidic, and if the pH is higher than 7, then it is a base
Natali5045456 [20]3 years ago
3 0
<span>temperature and pH yup yup</span>
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Explain how a shortage of water affects the health of your cells.
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Well your body is made up of mostly water and can damage your body because of dehydration 
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If a cell culture contains 400 cells/ml at time = 0 and it has a generation time of 30 minutes, how many cells (cells/ml) will b
Semmy [17]

Answer:

The answer to your question is: after two hours there will be 6400 cell/ ml

Explanation:

Data

Bacteria t = 0; 400 cells/ml

generation time = 30 minutes

# cells after two hours = ?

                                 # of bacteria               time

                                     400                            0

                                      800                         30 min

                                   1600                           60 min

                                   3200                           90 min

                                   6400                          120 min

7 0
3 years ago
Students observe woodchucks in their area. In the summer, students observe that woodchucks eat a lot of plants. In the winter,
andriy [413]

Answer:

The correct answer is - B. Woodchucks hibernate to survive the winter.

Explanation:

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Woodchucks are become less active and remain in their burrow and seen very little during the winter and stay like this till late winter or early spring.

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3 years ago
When heavier more dense oceanic crust is pushed under less dense continental
maria [59]

Answer:

trench

Explanation:

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