Question

choose the correct statement or statements about the asteroid belt. most asteroids are larger than the earth. a collision between a comet and planet created the main asteroid belt between mars and jupiter. the main asteroid belt is a region between the orbits of mars and jupiter lying between about 2.1 and 4.1 au from the sun. the main asteroid belt is a region between the orbits of earth and mars lying between about 1 and 2.1 au from the sun. the main asteroid belt is so densely populated that spacecraft traveling to the outer planets must occasionally steer clear of the asteroids to avoid collision.

Explanation:

1. Most asteroids are much smaller than the Earth.
2. The main asteroid - belt is not formed by a comet - planet collision. It is thought to be material that could not form a planet due to Jupiter's gravitational influence.
3. The main asteroid belt is located between the orbits of Mars and Jupiter, at a distance of about 2.1 - 4.1 AU from the Sun.
4. The main asteroid belt is not between the orbits of Earth and Mars.
5. The asteroid belt is actually quite sparse, and spacecraft can travel through it without the need for frequent course - corrections to avoid asteroids.

Answer:

The main asteroid belt is a region between the orbits of Mars and Jupiter lying between about 2.1 and 4.1 AU from the Sun.