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Ninth Grade (Grade 9) Inner Planets Questions

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Grade 9 Inner Planets
Which planet has two moons - Phobos and Deimos?
  1. Venus
  2. Mercury
  3. Mars
Grade 9 Inner Planets
What is Olympus Mons?
  1. a volcano on Mars
  2. a volcano on Venus
  3. a crater on the Moon
  4. a dwarf planet beyond Pluto
Grade 9 Inner Planets
What is the gas that makes up most of the Martian atmosphere?
  1. nitrogen
  2. oxygen
  3. carbon dioxide
  4. water vapor
Grade 9 Inner Planets
Which planet is almost the same size as Earth?
  1. Mercury
  2. Venus
  3. Mars
Grade 9 Inner Planets
It is called the veiled planet because it is covered with thick clouds.
  1. Sun
  2. Mars
  3. Jupiter
  4. Venus
  5. Mercury
  6. Saturn
  7. Earth
Grade 9 Inner Planets
All the inner planets have moons.
  1. True
  2. False
Grade 9 Inner Planets
The atmosphere on Venus is very thick and comprised mainly of                .
  1. carbon dioxide
  2. oxygen
  3. nitrogen
  4. helium
  5. hydrogen
Grade 9 Inner Planets
All the inner planets have thick atmospheres.
  1. True
  2. False
Grade 9 Inner Planets
What is the approximate distance from the Sun to Earth?
  1. 150 million km
  2. 1.4 million km
  3. 15 million km
  4. 100 million km
Grade 9 Inner Planets
Mars is volcanically active.
  1. True
  2. False
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