True b. False 12. Much of the hydrogen and helium in the inner solar system ended up at the center, in the Sun. T-Tauri winds removed most of the light hydrogen and helium from the inner solar system. All of the above 13. They formed in different parts of the solar nebula.
Different materials condense at different temperatures.
They formed at different times. There is no good explanation as to why they are composed of different materials. Refer to the periodic table of elements. Refer to this periodic table of elements. Refer to this periodic table of elements.