Answer:
<u>A common element among all the river valley civilizations was irrigation systems that moved water to crops and settlements</u>
Explanation:
- <u>River Valley civilizations where the civilizations that were found on the banks of the river like the Mesopotamia ,Indus valley civilization.</u>
- <u>These civilization where agriculture based civilization as they depended on river for drinking water and irrigational activities</u>
The answer to your question is Letter C <-- ANSWER
Steroid is a molecule made up of four carbon rings with other atoms bonded to those rings.
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It is number 1 because enzymes are always being consumed.
Answer:
the engineering of rice crops to withstand flooding and contain more nutrients
Explanation:
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