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प्रश्न
State two natural and two man-made sources of the green house gas – methane.
एक पंक्ति में उत्तर
उत्तर
Sources of CH4 [natural gas]
Natural: (1) Natural gas (2) Marsh gas.
Man made: (1) Coal mining (2) Natural wet lands and rice paddies.
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Preventive Measures of Green House Effect
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
