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Type: Multiple-Choice
Category: Waves and Sound
Level: Grade 9
Author: on2pleroma
Last Modified: 6 years ago

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Waves and Sound Question

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Grade 9 Waves and Sound

This is a form of energy traveling through space, which is blocked by ozone in the Earth's upper atmosphere.
  1. troposphere
  2. ultra-violet radiation
  3. light spectrum
  4. chlorofluorocarbons
  5. none of the above