Comets falling into the inner solar system from the ____________ are called long-period comets.
A)Oort cloud
B)asteroid belt
C)Roche limit
D)Kuiper belt
E)Widmanstätten region

Question

Quizplus · Accepted Answer

Long-period comets are believed to originate from the Oort cloud, a hypothetical shell of icy objects located beyond the Kuiper Belt and extending out to about 100,000 astronomical units from the Sun. These comets are thought to be perturbed by passing stars or gravitational interactions within the Galaxy, causing them to fall into the inner solar system on timescales of thousands to millions of years.

Comets Falling into the Inner Solar System from the ____________