1) Nearly 50% of the Earth's surface is covered with water. a) True b) False 2) The Earth is also called the blue planet a) True b) False 3) Mars is also called the red planet a) True b) False 4) The Earth is the only planet on which known life exist a) True b) False 5) The Solar System is part of a galaxy called____. a) Heliopause b) Andromeda c) Milky Way 6) Jupiter is the smallest planet in our Solar System a) True b) False 7) Jupiter, Saturn, Uranus and Neptune are______. a) Inner planets b) Outer planets c) Dwarf plantes

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