Final answer:
The material in the farthest reaches of the nebula that condensed independently to form ice and rock accretions is primarily found in comets and dwarf planets. These icy objects and rock accretions have bombarded inner planets, contributing to the accumulation of water and organic compounds critical for the formation of life.
Step-by-step explanation:
The material in the farthest reaches of the nebula that condensed independently to form ice and rock accretions is primarily found in comets and dwarf planets.
Asteroids are rocky or metallic and contain little volatile material, while comets are small icy objects that contain frozen water and other volatile materials with solid grains mixed in.
These icy objects and rock accretions in the outer part of the solar nebula have bombarded inner planets like Earth, contributing to the accumulation of water and organic compounds critical for the formation of life.