Where do most comets in our solar system come from?

It is thought that most comets originate in a vast cloud of ice and dust that surrounds the solar system. The Oort Cloud, as it is called, extends several thousand times farther from the Sun than Pluto, the outermost planet.

Explanation:

an obstruction

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.