1) What is placed at the center of the Solar System? a) Earth b) Sun c) Meteor d) Moon 2) What causes the day and night cycle? a) Earth's revolution b) Sun's revolution c) Earth's rotation d) Moon's revolution 3) How many planets does the Solar System contain? a) b) c) d) 4) What is the planet where human beings live? a) Earth b) Uranus c) Saturn d) Mercury 5) What causes the apparent movement of the Sun? a) Earth's revolution b) Sun's revolution c) Earth's rotation d) Moon's revolution 6) How long does the Earth take to spin on its own axis? a) 24 hours b) 28 days c) 365 days d) 48 hours 7) What ice and dust bodies are commonly found in the Kuiper Belt? a) Meteors b) Asteroids c) Moons d) Comets 8) What rocky space objects are commonly found in the Asteroid Belt? a) Meteors b) Asteroids c) Moons d) Comets

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