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प्रश्न
The atmospheric concentrations of carbon dioxide and CH4 have increased by ________ percent and ________ percent respectively above pre-industrial levels since 1750.
विकल्प
21, 139
40, 160
40, 140
32,150
MCQ
रिक्त स्थान भरें
उत्तर
The atmospheric concentrations of carbon dioxide and CH4 have increased by 40 percent and 140 percent respectively above pre-industrial levels since 1750.
Explanation:
The National Oceanic and Atmospheric Administration (NOAA) has released its yearly inventory of 20 major greenhouse gases.
Since 1750, atmospheric carbon dioxide and CH4 concentrations have increased by 40% and 140 percent, respectively, above pre-industrial levels.
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