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The percentage of carbon dioxide in the atmosphere is said to have doubled since the:

AFrench revolution era
BGreen revolution years
CSecond world war time
DIndustrial revolution
Answer & Solution
Correct answer: D. Industrial revolution
1. Humans began burning fossil fuels on a large scale. 2. Carbon dioxide has doubled since the industrial revolution. 3. It drives the greenhouse effect. _Source: syllabus Science, Chapter 14, Natural Resources._
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