I would personally go with an ice core because everything is frozen and just as it was all those years ago, therefore I'd feel like I had more and accurate data.<span />
<span>Which of the following has been a contemporary concern in northwestern China?
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</span>Answer: Of the options available the one that has been a contemporary concern in northwestern China is answer choice A) Ethnic Conflicts.
I hope it helps, Regards. <span>
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Answer:
Most probably the last one is correct.
Explanation:
As the "Supercontinent" broke down just like puzzles.
Hope it helped!!!
