What device in a power plant reduces the amount of released pollutants sent into the air?
Topic 2 - Human Uses of Energy

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Science
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4th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Scrubber
2.
FLASHCARD QUESTION
Front
What is the term for the release of something into the environment?
Back
Emission
3.
FLASHCARD QUESTION
Front
What is a gas that makes the atmosphere able to hold more heat, such as carbon dioxide and water vapor?
Back
Greenhouse gas
4.
FLASHCARD QUESTION
Front
What is an energy source made from unstable elements such as uranium?
Back
Uranium
5.
FLASHCARD QUESTION
Front
What is a substance that releases energy when it burns?
Back
Fuel
6.
FLASHCARD QUESTION
Front
What is the process of converting sunlight into energy called?
Back
Photosynthesis
7.
FLASHCARD QUESTION
Front
What is the term for energy derived from the heat of the Earth?
Back
Geothermal energy
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