What is the primary source of energy for the Earth system?
Earth's system & Spheres

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Physics, Chemistry, Other Sciences
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The primary source of energy for the Earth system is the Sun.
2.
FLASHCARD QUESTION
Front
What percentage of the atmosphere is made up of oxygen gas?
Back
21%.
3.
FLASHCARD QUESTION
Front
What does the cryosphere include?
Back
The cryosphere includes ice, snow, and permafrost, but NOT liquid water.
4.
FLASHCARD QUESTION
Front
Is Earth's atmosphere primarily composed of Nitrogen and Oxygen?
Back
True.
5.
FLASHCARD QUESTION
Front
What does the geosphere include?
Back
The geosphere includes the continents, ocean floor, rocks on the surface, and sand in deserts.
6.
FLASHCARD QUESTION
Front
What is the hydrosphere?
Back
The hydrosphere is the sphere that includes all of Earth's water, including oceans, rivers, lakes, and glaciers.
7.
FLASHCARD QUESTION
Front
What is the biosphere?
Back
The biosphere is the sphere that includes all living organisms on Earth.
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