In terms of compositionGroup of answer choicesall planets condensed from the same nebula, and have similar compositions.the Sun is unique, made of nothing but hydrogen and helium.the jovian planets are made only of ice, and the terrestrials only of rock.the jovian planets are more like the Sun than are the terrestrials.the terrestrials are more like the Sun, since they formed close to it.

Compared to the size of Earth, the jovian planets areGroup of answer choiceslarger.more dense.mixture of larger and smaller.smaller.

What makes the Sun different from other objects in the solar system, such as planets, moons and asteroids?Group of answer choicesThe Sun orbits and planets do notThe Moons and planets produce light where as the Sun does notPlanets go through a life cycle and the Sun does notSun produces its own light where as planets do notThe Sun have gravity whereas Planets do not

Given that stars and planets initially form from the same gas and dust in space, some astronomers have posited that host stars (such as the Sun) and their planets (such as those in our solar system) are composed of the same materials, with the planets containing equal or smaller quantities of the materials that make up the host star. This idea is also supported by evidence that rocky planets in our solar system are composed of some of the same materials as the Sun.13 Mark For ReviewWhich finding, if true, would most directly weaken the astronomers’ claim? A) Most stars are made of hydrogen and helium, but when cooled they are revealed to contain small amounts of iron and silicate. B) A nearby host star is observed to contain the same proportion of hydrogen and helium as that of the Sun. C) Evidence emerges that the amount of iron in some rocky planets is considerably higher than the amount in their host star. D) The method for determining the composition of rocky planets is discovered to be less effective when used to analyze other kinds of planets.

Compared to Jovian planets, Terrestrial planets have a (Select All the answers that are correct)Group of answer choicesrocky crustlower densitylarger sizethicker atmospheremore moonshigher densitylower massslower spinfaster orbit

Which one of the following characterizes terrestrial planets?Group of answer choicesTerrestrial planet are a planets made of solid surface that is mainly composed of silicate rocks and metalsTerrestrial planets are the inner four planets closer to the SunAll terrestrial worlds have a core, mantle, and crust.Terrestrial planets do not have ringAll of the above