Answer:
A compound with a C:H:O. ratio of 1:2:1 is a carbohydrate. The body uses carbohydrates mainly as an energy source.
Explanation:
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1. Meanders
2. Flood plain zone
3. Alluvial fan
4. source zone
5. transition zone
6. Deltas
An ecosystem is like a machine that cycles matter by using:
captured energy.
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