Practice Quiz

NAEP Science Grade 12

Category - Science

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Why does radioactive dating of meteorites give a more accurate age for Earth than radioactive dating of rocks at Earth's surface?
  1. Most rocks that first formed on Earth's surface have since undergone major geologic changes.
  2. Most rocks found on Earth's surface are older than most meteorites.
  3. Most meteorites contain minerals that are the same age as those found on Earth's surface.
  4. Most meteorites are made of the same type of iron that is found in Earth's core.
Explanation
Answer: A - Most rocks that first formed on Earth's surface have since undergone major geologic changes.
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