Answer:
a nuclear weapons treaty (nuclear non-proliferation)
Answer:
c or the emlimantion of most environmental effects
Explanation:
we cant stop environmental effects
The indigenous people of Northern Mexico met their need for food because of all the wild animals there. They also planted and harvested their own food, and this was their food supply.
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Answer:
Underground mines are more expensive and are often used to reach deeper deposits.
Surface mines are typically used for more shallow and less valuable deposits.
Explanation:
