Answer:
While it is difficult to determine exactly how many Natives lived in North America before Columbus, estimates range from a low of 2.1 million to 7 million people to a high of 18 million.
Explanation:
The main cause of acid rain is A. Burning of Fossil Fuels
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Answer:
1.Carbon is the basis of all living things
3.Nitrogen is found in certain foods
4.Oxygen and hydrogen combine with each other to form water
6.Carbon, oxygen, hydrogen, nitrogen, phosphorus and sulfur are found in organic compounds
Explanation:
Answer:
yes the annswer is c because the ordit is on a 45 degree angle
Explanation: