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Type: Multiple-Choice
Category: Environmental Science
Level: Grade 9
Author: LBeth
Last Modified: 6 years ago

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Environmental Science Question

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Grade 9 Environmental Science

The greenhouse effect heats Earth's surface by
  1. infrared radiation and sunlight.
  2. sunlight and volcanic eruptions.
  3. mantel convection and infrared radiation.
  4. volcanic eruptions and mantle convection.