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naturelle naturelle
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7 years ago
Sources of natural variable gases and materials include all of the following except 
A)  volcanoes. 
B)  forest fires. 
C)  plants and decaying plants. 
D)  industrial activity.
Textbook 
Geosystems: An Introduction to Physical Geography

Geosystems: An Introduction to Physical Geography


Edition: 7th
Author:
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qvcqvc
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7 years ago
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naturelle Author
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6 years ago
Wow, correct again Smiling Face with Open Mouth
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