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bennac40 bennac40
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6 years ago
Which gas, contributed in part by burning fossil fuels, is used by scientists as an indicator of future global warming?
A) CO2
B) nitrogen
C) oxygen
D) hydrogen
Textbook 
Introduction to Geography: People, Places & Environment

Introduction to Geography: People, Places & Environment


Edition: 6th
Authors:
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kingworldkingworld
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6 years ago
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bennac40 Author
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6 years ago
Smart ... Thanks!
dedricgard
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Yesterday
Helped a lot
Shassta22
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2 hours ago
Correct Slight Smile TY
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