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aalyn [17]
3 years ago
5

How does running water affect valleys?

Biology
2 answers:
Juliette [100K]3 years ago
4 0

Answer:

1st option

Explanation:

lubasha [3.4K]3 years ago
3 0

Answer:

I think answer a

Explanation:

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A. donation of excited electrons by chlorophyll a to a primary electron acceptor

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Explanation:

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<u><em>I hope this helps and have a good day!</em></u>

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Amoeba sisters: nature of science
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The scientific mrthod is a process used by scientists to find answers to a question or to solve a problem. No there isn't just one because there are several versions of the scientific method. Some versions have more steps, while others may have only a few. Scientists can add steps, take out steps, revise, or make models.

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