औद्योगिक क्रांति में कोयले का महत्व क्यों बढ़ा?
Why did the importance of coal increase during the Industrial Revolution?
Explanation opens after your attempt
D. क्योंकि वह मशीनों और भाप इंजन के लिए ईंधन बनाBecause it became fuel for machines and steam engines
Concept
Coal became an important source of industrial energy. For exams remember coal and steam engines together.
Why this answer is correct
The correct answer is D. क्योंकि वह मशीनों और भाप इंजन के लिए ईंधन बना / Because it became fuel for machines and steam engines. Coal became an important source of industrial energy. For exams remember coal and steam engines together.
Exam Tip
कोयला औद्योगिक ऊर्जा का महत्वपूर्ण स्रोत बना। परीक्षा में कोयला और भाप इंजन को साथ याद रखें।
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