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1. All asteroids are found between Mars and Jupiter
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2. Comets are balls of fire flying through space
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3. If you put all the asteroids together and made one planet from then, the new planet would be smaller than Earth’s moon.
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4. Ceres, the largest asteroid, is also the brightest one.
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5. Shooting stars are really stars falling out of the sky.
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6. Comets are essentially dirty, snowy mud-balls in space.
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7. Comets are believed to come from a huge cloud of comets a thousand times more distant than Pluto called the Oort Cloud.
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8. If a meteor hits the Earth’s surface, we change its name to a meteorite.
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No asteroids are visible to the naked eye.
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10. Comets have two tails.
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11. A comet’s tail always drags behind the comet .
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12. A comet’s tail always points away from the Sun.
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13. Flying a spaceship through the asteroid belt is very dangerous.
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14. A comet gets smaller each time it goes around the Sun.
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15. Most meteors are rocks smaller than pebbles or sand.
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16. Meteors showers are pieces of disintegrated comets.
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18. Bolides are what we call large meteors
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19. Asteroids that cross Earth’s orbit are called Apollo asteroids.
Question 19
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Some scientists think the extinction of the dinosaurs may have been caused by the collision of a Trojan Asteroid with Earth.