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>
Answer:
The following table lists that number and variety of organisms in four different. Predict what would happen to Ecosystem 3 immediately after a volcanic eruption. Its biodiversity would decrease ... 395---Add all of the organisms together and divide by the number of ecosystems
Explanation:
This is called the G1 phase I'm sure.
