Author Question: The Oort cloud is ________. (Read 31 times)

Engineer · **on:** Feb 28, 2020

Question 1

Comets are made up primarily of ________.
◦ iron-nickel alloys
◦ frozen hydrogen
◦ silicate minerals, like rocks on Earth
◦ frozen water, carbon dioxide, and methane

Question 2

The Oort cloud is ________.
◦ the outer solar system where planetesimals, rocky debris and comets orbit outside beyond the outer planets but cross into the inner solar system at times
◦ an unusual type of cloud formed when meteorites strike Earth
◦ the asteroid belt
◦ another name for the inner solar system, just before the Sun became hot enough for nuclear fusion

Jadwiga9 · **Reply #1 on:** Feb 28, 2020

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