Select all of the options that complete the following sentence. For something to be classified as a planet, it must:orbit another planetorbit a starbe large enough to be roundhave cleared its orbit of debris

Select all of the options that complete the following sentence. A moon:is a natural satellitemust orbit a starmust orbit a planetmust have a thick atmosphere

A planet is now defined as an object thatGroup of answer choicesHas a moonCan support lifeHas a rocky surfaceIs spherical, orbits the sun, and has cleared the path around itself

Select the statement(s) that accurately describe planetary systems.The planets that orbit a star comprise a planetary system.The universe is inside a planetary system.The planetary system that has Earth in it is the only one called the solar system.There can be other objects such as moons and dwarf planets in planetary systems.Every star in the universe makes a planetary system.Preview

Statements:All planets are stars.All meteors are planets.No orbit is a star.Conclusions:I. All meteors are stars.II. No planet is an orbit.

Select the options that complete the following sentence. A star is: a giant ball of gas that produces heat and lightmade of solid rockheld together by gravitymade of heavy elements like lead and mercury