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Part - 2 CH - 5 Mineral and Energy Resources — Geography STD 12 Humanities & Commerce — Question

Rajasthan BoardEnglish MediumSTD 12 Humanities & CommerceGeographyPart - 2 CH - 5 Mineral and Energy Resources2 Marks
Question
What are canaries used for?
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Answer

Singareni collieries, the country’s premier coal production company, still uses canaries to detect the presence of deadly carbon monoxide in underground mines.

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