The answer is B. phosphodioxide. It is not a pollutant of fossil fuels.
1.B.The city was located in the Andes Mountains of South America.
2.C.Region 3
There are many ways to determine the value of currency. One is supply and demand, the more a currency is wanted the value of it will rise. However, if one value rises, the others fall compared to it. That's why currency values change all the time.
You should be able to find this on a map.
<span>Answer: Outer core
Explanation: California Institute of Technology reported that the Earth's liquid core is the primary source of magnetic field and it happens from the movement of molten iron and nickel in its liquid outer core.</span>