UNIVERSE
METEORITES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They produce a toxic gas and cannot go near the Earth
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A piece could break off after collision and cause a meteorite to hit the Earth’s surface
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They can get too large and block sunlight from reaching the Earth
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A piece could break off after collision and cause a meteor to hit the Earth’s surface
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Detailed explanation-1: -If a big asteroid is found to be on a collision course with Earth we need to deflect it. This means we change the asteroid’s orbit enough to make it miss Earth.
Detailed explanation-2: -It is likely that over the past 4.5 billion years, collisions with other asteroids fractured the asteroid. The effects of sunlight slowly caused an increase in the asteroid’s rotation rate, until the loosely bound fragments drifted apart due to centrifugal forces.
Detailed explanation-3: -They are comprised of small pieces of debris, typically no larger than a grain of dust or sand, which continually crash into the Earth’s atmosphere. As that debris plunges deeper and deeper, friction with the atmosphere causes it to ablate – burning up from the outside in.
Detailed explanation-4: -Collisions with asteroids, comets and other stuff from space have been responsible for huge landmarks in our planet’s history: global shifts in climate, the creation of our moon, the reshuffling of our deepest geology, and the extinction of species.