About 2% of our solar nebula consisted of elements besides hydrogen and helium.However,the very first generation of star systems in the universe probably consisted only of hydrogen and helium.Which of the following statements is most likely to have been true about these first-generation star systems?
A)There were no comets or asteroids in these first-generation star systems.
B)Jovian planets in these first-generation star systems had clouds made of water and other hydrogen compounds.
C)These first-generation star systems typically had several terrestrial planets in addition to jovian planets.
D)Like the jovian planets in our solar system,the jovian planets in these first-generation systems were orbited by rings.

Question

Quizplus · Accepted Answer

Since the first-generation star systems only consisted of hydrogen and helium, there would not have been enough heavy elements to form comets or asteroids.

About 2% of Our Solar Nebula Consisted of Elements Besides