The answer is D. Exosphere
Exosphere is the outermost Layer of the Atmosphere that goes out about 500 - 10,000 Km in altitude.
It's the place where satellites and the space shuttle orbit the earth. Because it's difficult to define the boundary between exosphere and the outer space, exosphere may be considered as a part of outer space
Idk man sorry but
I’m pretty sure it’s the southern part
Of Brazil
Its B because it increases the amount of dust carried by wind