UNIVERSE
METEORITES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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what is the significance of Oort cloud?
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a cloud outside of the comet made of dust, gas, and water vapor
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ions are swept away by solar wind
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a majority of comets originate from here
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None of the above
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Explanation:
Detailed explanation-1: -Because the orbits of long-period comets are so extremely long, scientists suspect that the Oort Cloud is the source of most of those comets.
Detailed explanation-2: -Long-period comets are thought to originate in the Oort cloud, a spherical cloud of icy bodies extending from outside the Kuiper belt to halfway to the nearest star. Long-period comets are set in motion towards the Sun by gravitational perturbations from passing stars and the galactic tide.
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