Answer:
Explanation:
The earliest time that life forms first appeared on Earth is at least 3.77 billion years ago, possibly as early as 4.28 billion years, or even 4.41 billion years—not long after the oceans formed 4.5 billion years ago, and after the formation of the Earth 4.54 billion years ago.
Answer:
3.77 billion years ago
Explanation:
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where is runny lava found
a. on a continental plate
b. on an oceanic plate
Answer:
A. Continental plate
Explanation:
A continental plate is where most volcanoes are and it is the layer that humans live on
How were the Sumerians able to create a surplus of food?
Answer:
Digging of irrigation canals to irrigate their fields allowed for growing better and more crops. food surpluses allowed people to do other work than farm. this meant that they had enough food to survive in extra to trade with.
Explanation:
Hope this helped Mark BRAINLEST!!!!