The Inner Planets

Which of the following puts the inner planets in the correct order, starting with the closest to the Sun?

• Mercury, Earth, Venus, Mars

• Mars, Venus, Earth, Mercury

• Mercury, Venus, Earth, Mars

• Mercury, Mars, Earth, Venus

• Mars, Earth, Venus, Mercury

Which of the following statements is NOT true about the inner planets?

• They are smaller than the outer planets

• They typically have few or no moons

• They are considered to be gaseous planets

• They are considered terrestrial planets

• They generally have shorter orbital periods

Which of the inner planets is considered to have no moon and no atmosphere, which explains why it has many impact sites of meteorites on its surface?

• Mercury

• Venus

• Earth

• Mars

Earth is said to be tilted by how many degrees?

• 32.5 degrees

• 52.3 degrees

• 23.5 degrees

• 53.2 degrees

Which planet has no moon and has a dense atmosphere of carbon dioxide, making it the hottest planet, due to the "greenhouse effect?"

• Mercury

• Venus

• Earth

• Mars

Which planet has a thin atmosphere comprised of carbon dioxide, and appears red due to the amount of rust produced by iron in the rocks on the planet's surface?

• Mercury

• Venus

• Earth

• Mars

The asteroid belt is located between which two planets?

• Earth and Mars

• Mars and Jupiter

• Jupiter and Saturn

• Venus and Earth

• Mercury and Jupiter

Which of the inner planets is considered to be less than 1 AU away from the Sun?

• Mercury

• Venus

• Earth

• Mars

• Uranus

Which of the inner planets is considered to be more than 1 AU away from the Sun?

• Mercury

• Jupiter

• Earth

• Mars

• Uranus

Which of the following are "inner planets" of our solar system?

• The planets from Mercury to Neptune, not including the asteroid belt

• Mars, Venus, Earth, Mercury

• Earth, Mercury, Mars, and Venus

• Saturn, Mars, Jupiter, and Neptune

• Jupiter, Saturn, Neptune, Uranus