Climate Systems Chapter 15 Clicker Question What is the approximate CO2 content of the atmosphere? A. 0.004% (40 ppm) B. 0.04% (400 ppm) C. 0.4% (4000 ppm) D. 4% (40,000…
Climate Systems Chapter 15 Clicker Question What is the approximate CO2 content of the atmosphere? A. 0.004% (40 ppm) B. 0.04% (400 ppm) C. 0.4% (4000 ppm) D. 4% (40,000…