As many as you want.
The objects that are found between Mars and Jupiter are called asteroids. This area is called the asteroid belt.
asteroids and comets
There is an asteroid belt in between Mars and Jupiter, and another one out there - thekuiper belt. It is the reason that pluto is no longer a planet, because several other objects were found in this belt that are the same as pluto, thus pluto was not special and so it, along with the other objects, are called the kuiper belt instead of planets.
What is the Kuiper Belt and what kind of objects reside there?
Asteroids are found orbiting the Sun in between Jupiter and Mars. So, the answer is "the Asteroid Belt".
Objects in the outer solar system, such as dwarf planets like Pluto, and Kuiper Belt objects, are believed to have been least modified since the formation of the solar system. These objects are located far from the Sun and have experienced less heating and geological activity compared to objects closer to the Sun. Additionally, some asteroids in the Main Belt between Mars and Jupiter are considered primitive, with little alteration since the early solar system.
The asteroid belt does not have a surface as it is not an objects. It is a loose scattering of objects.
Scientists estimate there are several hundred thousand objects bigger than 20 miles across waiting to be discovered in that vast region. We call this swarm of bodies the in honor of Dutch-American astronomer Gerard Kuiper. The inhabitants of this realm are called Kuiper Belt Objects (KBOs), Edgeworth/Kuiper Belt Objects, or simply Trans-Neptunian Objects (TNOs). It is very likely that most of the short-period comets found in the inner solar system come from the Kuiper Belt, being held there in cold storage until random movements nudge them inward.
because of the asteroid belt
No, the Kuiper Belt does not have an atmosphere. It is a region in space beyond Neptune where icy bodies and dwarf planets are found. These objects are too small to retain an atmosphere due to their low gravity.
True. Asteroids are rocky objects that orbit the Sun and many of them can be found within the asteroid belt located between Mars and Jupiter.
The Kuiper Belt is home to a variety of celestial objects, including dwarf planets such as Pluto, Haumea, and Makemake. This region, located beyond the orbit of Neptune, contains numerous icy bodies and small celestial objects. Additionally, many comets that enter the inner solar system originate from the Kuiper Belt.