Earth Science Chapter 23 Lesson 1 Questions 11/6/24

How do terrestrial planets differ from Jovian planets?

• Terrestrial planets are gas giants, while Jovian planets are rocky.

• Terrestrial planets have solid surfaces, while Jovian planets are mostly gaseous.

• Terrestrial planets are larger than Jovian planets.

• Terrestrial planets have more moons than Jovian planets.

How did the solar system form?

• From a collision of two stars.

• From a large explosion in space.

• From a rotating disk of gas and dust.

• From the merging of several small galaxies.

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What is a nebula?

• A type of star.

• A cloud of gas and dust in space.

• A small moon orbiting a planet.

• A rocky asteroid.

What is a planetesimal?

• A small planet.

• A large star.

• A small body that orbits the sun and can form planets.

• A type of comet.

What is the hub of the solar system?

• Earth

• Moon

• Sun

• Mars

What percentage of the solar system's mass is contained in the sun?

• 85.99%

• 99.85%

• 15.99%

• 98.55%

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What makes up most of the remaining mass in the solar system after the sun?

• Asteroids

• Comets

• Planets

• Moons

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Which planet has the shortest period of revolution?

• Mercury

• Venus

• Earth

• Mars

What is the average density of Earth in g/cm³?

• 5.4

• 5.2

• 5.5

• 3.9

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Which planet has the largest number of known satellites?

• Mars

• Jupiter

• Saturn

• Uranus