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Ainat [17]
3 years ago
15

The most common source of infectious diseases in water supplies is _______. a. algal blooms b. sewage c. surface runoff d. none

of the above
Biology
2 answers:
SSSSS [86.1K]3 years ago
7 0

b. sewage just to the test

olya-2409 [2.1K]3 years ago
3 0
None of the above...
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Answer:

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Chemoreceptors in the circulatory system detect changes in circulating pCO2. If CO2 concentrations get too high, the rate of ven
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2 years ago
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Alja [10]

Answer:

The longer answer lies in the details of photosynthesis, the electromagnetic spectrum, energy and “special pairs” of chlorophyll molecules in each plant cell. ... As such, plants look green because they absorb red light most efficiently and the green light is reflected.

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No answer.

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