1) Which planet is nearest to the earth? a) Neptune b) Venus c) Jupiter 2) Which is the largest planet in our solar system? a) Saturn b) Earth c) Jupiter 3) How many natural satellites does Earth has? a) two b) one c) six 4) Which planet is closest to the sun? a) Mercury b) Mars 5) What is a comet mostly made up of? a) rocks b) ice and dust c) metal d) poisonous liquid

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