Final answer:
Carbonaceous chondrites are meteorites that contain carbon and complex organic molecules. They are composed of silicates with some metallic grains, and are believed to come from the outer part of the asteroid belt.
Step-by-step explanation:
Carbonaceous chondrites are a type of meteorite that contain carbon and various complex organic molecules. They are composed of light-colored gray silicates with some metallic grains mixed in. The carbonaceous chondrites also contain chemically bound water and are depleted in metallic iron. These meteorites are believed to come from the outer part of the asteroid belt and are considered primitive bodies that have changed little chemically since the beginning of the solar system.