. Coal formation has four stages, its third stage is known as:
. Coal formation has four stages, its third stage is known as:
. کوئلے کی تشکیل کے چار مراحل ہوتے ہیں، اس کے تیسرے مرحلے کو کیا کہا جاتا ہے
Explanation
There are four stages in coal formation: peat, lignite, bituminous, and anthracite.