The general pattern of atmospheric carbon dioxide concentration between 1960 and 2010 reveals

A) a steady increase from about 310 ppm to the current 400 ppm.
B) no significant increases until the year 2005.
C) mitigation of an increasing trend due to reduced use of fossil fuels.
D) that most of the increase is the result of agricultural wastes and deforestation.


A

Environmental & Atmospheric Sciences

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