Carbon dioxide, C, in ppm; t in years since 1970 t 0 5 10 15 20 25 30 35 C 326 331 339
Chapter 0, Problem 21(choose chapter or problem)
Carbon dioxide, C, in ppm; t in years since 1970 t 0 5 10 15 20 25 30 35 C 326 331 339 346 354 361 369 380
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