Answer:
Human activity can affect the amount of carbon in the atmosphere. When fossil fuels like oil, coal, and natural gas are burned, carbon dioxide is released into the atmosphere as waste.
Explanation:
You are correct the answer is c
Although now it causes more harm than good because it doesn't really have a purpose, it is believed it once was used for humans to digest bone.
Answer:
The answer is Abstract.
Explanation:
The hematopoietic stem cell gives rise to.
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