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Earth Science
Earth Science Glossary
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Y
year
The time it takes for a planet to orbit the Sun.
Licenses and Attributions
CC licensed content, Shared previously
Earth Science for High School.
Provided by
: CK-12.
Located at
:
http://www.ck12.org/book/CK-12-Earth-Science-For-High-School/
.
License
:
CC BY-NC: Attribution-NonCommercial
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