Most meteors are fragments of asteroids that broke up long ago in which region?

• A. The Asteroid Belt
• B. The Kuiper Belt
• C. The Oort Cloud
• D. Interstellar space

Answer: (A)

The main idea is that most meteoroids come from collisions that break apart asteroids in the asteroid belt, the region between Mars and Jupiter. When rocks in that belt smash together, they nudge fragments onto paths that can intersect Earth, turning into meteors as they enter our atmosphere. The Kuiper Belt beyond Neptune mainly contains icy objects and is a source of comets; the Oort Cloud is a distant hypothetical shell of icy bodies associated with long-period comets; interstellar space would imply an origin outside the solar system. So the asteroid belt is the best fit because it’s the primary source of rocky debris that becomes meteors.