About 2% of Our Solar Nebula Consisted of Elements Besides

question 39

Multiple Choice

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.

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