It is B pair the last one
Answer: On the Northern horizon
Explanation:
If the star is directly overhead when you stand at the North Pole, it will sink further and further the more you move south towards the equator due to the earth's curve. When you get to the equator, the star will ideally sit right on the northern horizon.
After one crosses the equator however, the star will disappear from view. It is therefore not possible to see this star from anywhere south of the Equator to the South Pole.
1 because college has effects that can last your whole life. All of the rest of the answers are short term.
Answer:
If Exosphere is not an option, then it would be Thermosphere
