I think the answer is b. wavelength (:
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▹ Answer
<em>B. water cycle</em>
▹ Step-by-Step Explanation
Water is something that is dependent on amongst living things. Without the water cycle, there wouldn't be a source of water and living things wouldn't be able to survive.
Hope this helps!
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Answer:Um the answers would be nice
Explanation:
The correct answer should be: Bromide