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Question & Answer
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The Oort Cloud contains primarily rocky bodies.
Comets originate from gravitational interactions with outer planets.
The Oort Cloud is a significant source of long-period comets.
Nearby stars have no effect on the dynamics of the Oort Cloud.
The Oort Cloud consists mainly of icy bodies.
Understanding the Answer
Let's break down why this is correct
Comets come from the outer planets, which tug them toward the Sun. Other options are incorrect because People often picture the Oort Cloud as full of rocks like asteroids, but it is mainly made of ice, like frozen comets; Some think stars nearby do nothing to the Oort Cloud, but when a star passes by, its gravity can nudge Oort Cloud objects toward the Sun.
Key Concepts
Solar System Reservoirs
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Deep Dive: Solar System Reservoirs
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Definition
Solar System Reservoirs refer to regions like the Oort Cloud, where vast numbers of icy bodies reside. These bodies, including comets, originate from gravitational interactions with outer planets and can be influenced by nearby stars. Studying these reservoirs helps us understand the dynamics of solar system formation and evolution.
Topic Definition
Solar System Reservoirs refer to regions like the Oort Cloud, where vast numbers of icy bodies reside. These bodies, including comets, originate from gravitational interactions with outer planets and can be influenced by nearby stars. Studying these reservoirs helps us understand the dynamics of solar system formation and evolution.
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