9.Question 9Pallasites are not only once of the most beautiful types of meteorites that you can find, they are also one of the most special. Many things must happen before a pallasite can form and be delivered to your hand. Which of the following is NOT one of them?1 pointA piece of the core-mantle boundary from a shattered mini-planet must land on the EarthPieces of a shattered body must hit a resonance which puts them onto an Earth crossing orbitA body must form which is large enough to retain enough heat to differentiateSomeone has to find the pallasite on the Earth (and, eventually, it gets handed to you)All of these must happenA differentiated body must have an impact which shatters it into pieces
Question
9.Question 9Pallasites are not only once of the most beautiful types of meteorites that you can find, they are also one of the most special. Many things must happen before a pallasite can form and be delivered to your hand. Which of the following is NOT one of them?1 pointA piece of the core-mantle boundary from a shattered mini-planet must land on the EarthPieces of a shattered body must hit a resonance which puts them onto an Earth crossing orbitA body must form which is large enough to retain enough heat to differentiateSomeone has to find the pallasite on the Earth (and, eventually, it gets handed to you)All of these must happenA differentiated body must have an impact which shatters it into pieces
Solution
The question is asking which of the listed events is NOT necessary for the formation and discovery of a pallasite, a type of meteorite. Here are the options:
A. A piece of the core-mantle boundary from a shattered mini-planet must land on the Earth B. Pieces of a shattered body must hit a resonance which puts them onto an Earth crossing orbit C. A body must form which is large enough to retain enough heat to differentiate D. Someone has to find the pallasite on the Earth (and, eventually, it gets handed to you) E. All of these must happen F. A differentiated body must have an impact which shatters it into pieces
To answer this question, we need to understand the process of pallasite formation and discovery. Pallasites are believed to form at the core-mantle boundary of differentiated parent bodies, so options A, C, and F describe necessary events. The shattered pieces must also enter an Earth-crossing orbit to eventually land on Earth, which is what option B describes.
Option D, however, is not a necessary event for the formation of a pallasite. While it's true that for a pallasite to be studied and appreciated, it must be found, the act of finding the pallasite does not contribute to its formation. Therefore, the answer is D: "Someone has to find the pallasite on the Earth (and, eventually, it gets handed to you)".
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