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 almost 4.6 billion years ago
B) a meteorite that was discovered by primitive people
C) a type of meteorite that is made mostly of high-density metals
D) a meteorite that fell to Earth at least 4 billion years ago


A) a meteorite that is essentially unchanged since it first condensed and accreted in the solar nebula almost 4.6 billion years ago

Physics & Space Science

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In an X-ray diffraction experiment using X-rays of ? = 0.500 × 10^?10 m, a first-order maximum occurred at 5.00°. Find the crystal plane spacing

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