Question

1. comets are often referred to as \dirty snowballs\ because they are made of rock, dust, and ice and come from the outer reaches of the solar system where it is very cold. comets come from two locations in our solar system. what is the origin of long - period comets? oort cloud kuiper belt asteroid belt outside our solar system

Explanation:

Long - period comets are believed to originate from the Oort Cloud, a spherical cloud of icy objects surrounding the solar system at a great distance. The Kuiper Belt is the source of short - period comets. The Asteroid Belt mainly consists of asteroids, not comets. Comets in question are from within the solar system.

Answer:

A. Oort Cloud