Right answer: A. jet streams.
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Classy and smooth is the answer
Answer:
1
Explanation:
The rest are wrong b/c it helped <em>expand</em> China rather than isolate it, they didn't use ships on the Silk Road, and it brought better communications, etc. between countries.
They both claim the land of Isreal
Answer:
Give people water
Explanation:
If they have it there will be no demand for it
