The primary source of fuel in South america is petroleum.
-Agarvated
Nitrogen and oxygen are the main constituents of the atmosphere plus water vapour near the surface. Carbon dioxide is present in smaller amounts butgl of course it can have a profound influence on the climate as global warming has shown, Greenhouse gases include water vapour, carbon dioxide, methane and nitrous oxide.
Answer:
A
Explanation:
Because South America is covered in two sides, the long coast line in chile, and the other side with brazil
Answer:
Writing
Explanation:
Hunter-gatherer societies had religion, art, language, and many other things that other later societies also had. But they didn't know how to write. Writing came later with more permanent settlements that were made possible by humans learning how to cultivate and grow their food and didn't have to move that much, or at all anymore.
The answer is B. I believe that this is the answer because the barnacle is benefiting from the gray whale without harming, or affecting it in the process.
