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FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

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Dinosaurs are no longer existent on earth due to:
  1. The impact of an asteroid.
  2. All water freezing on earth.
  3. Water evaporating.
  4. Loss of earth’s atmosphere.
  5. A giant earthquake.
Explanation
Answer: A - The extinction of the dinosaurs is theorized to be caused by the impact of a large asteroid. The initial impact would have destroyed a large regional area, but the ensuing dust cloud that surrounded the planet resulted in the death of much of the plant life, and with it, the dinosaurs.
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