Question

Where do most of the original planetesimals formed beyond the orbit of Neptune now reside?

Select one:

a. Kuiper belt

b. Oort cloud

c. asteroid belt

d. as orbiting moons

Answer 1

Option A

Kuiper belt

Asteroid belt lies between mars and jupiter planet.

In Asteroid belt there are billions and trillions of asteroids revolve around sun like planet.

It is believed that all planets and asteroids are all made or formed from planetesimals in different condition, like the inner planets which are near to sun like Mercury, Mars, Venus Earth are more denser then Jupiter, Saturn and other outer planets.

But all planets are formed from planetesimals.

Planetesimals have size of 1 kilometersm to few kilometers. It is formed from condensing the concentration of diffuse matter in early age of solar system