Tsunamis (and also underground volcano eruptions)<span />
Answer:
B. Arising in the northern plains, this river flows through states between the Appalachian and rocky mountain ranges and dumps into the Gulf of Mexico.
Explanation:
Purpose: This preferred answer best illustrates the sequence of the Mississippi River. It accompanies the course described in choice B.
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.
