UNIVERSE
ASTEROIDS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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as big as a fist
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as big as a penny
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as big as a automobile
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as big as a house
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Detailed explanation-1: -Typically, though, a meteoroid would have to be about the size of a marble for a portion of it to reach the Earth’s surface. Smaller particles burn up in the atmosphere about 50 to 75 miles (80 to 120 kilometers) above the Earth.
Detailed explanation-2: -When meteoroids enter Earth’s atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it’s called a meteorite.
Detailed explanation-3: -Asteroids and meteoroids are small rocky objects, much smaller than planets, that orbit the sun. If it is larger than 1 meter in diameter, then it is an asteroid; if it is 2 millimeters to 1 meter in size, it is a meteoroid. If it is smaller than 2 mm, it is a micrometeoroid.
Detailed explanation-4: -Meteors usually completely burn up in the air, usually at an altitude of 60 miles or so. But some are large enough to survive and strike the ground. This surviving chunk of rock is called a meteorite.
Detailed explanation-5: -In April 2017, the IAU adopted an official revision of its definition, limiting size to between 30 µm and one meter in diameter, but allowing for a deviation for any object causing a meteor. Objects smaller than meteoroids are classified as micrometeoroids and interplanetary dust.