Answer:
Kuiper Belt
Explanation:
Like you correctly said, the short-period comets are thought to originate in the Kuiper Belt, which is an area outside Neptune's orbit, which is located from thirty to fifty light-year.
Answer: B
Thermal Stress will weaken rock formations due to expansion and contraction from temperature changes.
Artificial Boundaries, because countries are way more likely to dispute and fight wars over this type of boundary, than natural boundaries <span />
The image of that large body of water is apparently
so far above that we can't see it to decide.
