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Conventional Energy Sources (in Hindi)
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This lesson talks about the following Conventional Sources of Energy like Firewood, Fossil Fuels like Coal, Petroleum and Natural Gas, and Hydel Power.

Arpita Prakash
NCERTs series initiator at Unacademy 'Educator of the Month' for Feb'19 CBSE 0.1% Merit Certificate holder in Mathematics

Unacademy user
very nice madam Good effort in both Hindi as well as in English
Namaste mam! I really appreciate the way you teach it was so good that anyone can easily utilise the knowledge from it.So softly patiently you explained.Very good mam!!
Raniganj is a community development block that forms an administrative division in Asansol subdivision of Paschim Bardhaman district in the Indian state of West Bengal not in jk
thankuuu sooo mch mam,,......
Mam Raniganj is in West Bengal not in Jharkhand
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