which statements describe the planets? check all that apply.\n□ mars and venus are mostly rock.\n□ the…

which statements describe the planets? check all that apply.\n□ mars and venus are mostly rock.\n□ the ancient greeks discovered all the planets in the solar system.\n□ saturn is classified as a gas giant.\n□ jupiter is mostly rock surrounded by clouds.\n□ pluto is considered a dwarf planet.\n□ earth is much smaller than uranus.

which statements describe the planets? check all that apply.\n□ mars and venus are mostly rock.\n□ the ancient greeks discovered all the planets in the solar system.\n□ saturn is classified as a gas giant.\n□ jupiter is mostly rock surrounded by clouds.\n□ pluto is considered a dwarf planet.\n□ earth is much smaller than uranus.

Answer

Brief Explanations:

  • Mars and Venus are terrestrial planets made mostly of rock.
  • The ancient Greeks did not discover all planets; Neptune and Uranus were discovered later.
  • Saturn and Jupiter are gas - giants.
  • Jupiter is mainly composed of hydrogen and helium, not mostly rock.
  • Pluto was re - classified as a dwarf planet in 2006.
  • Earth is smaller than Uranus, but not "much smaller" in a very extreme sense.

Answer:

  • Mars and Venus are mostly rock.
  • Saturn is classified as a gas giant.
  • Pluto is considered a dwarf planet.