What do we mean by a primitive meteorite?
A)a meteorite that is essentially unchanged since it first condensed and accreted in the solar nebula some 4.6 billion years ago
B)a meteorite that was discovered by primitive people
C)a type of meteorite that is usually made mostly of high-density metals
D)a meteorite that fell to Earth at least 4 billion years ago

Question

Quizplus · Accepted Answer

A primitive meteorite is one that is essentially unchanged since it first condensed and accreted in the solar nebula some 4.6 billion years ago. These meteorites are valuable for studying the early stages of the solar system's formation.

Answer: C and D are incorrect
 Choice C is incorrect because primitive meteorites can be made of both high- and low-density materials. Choice D is incorrect because the age of a meteorite does not define its primitiveness.

What Do We Mean by a Primitive Meteorite