Скачать или смотреть Coal and Petroleum - Class 8 Science Chapter 3 [Full Chapter]

In this video we are studying class 8 science chapter 3 Coal and Petroleum, in this chapter we have to study types of natural resources based on exhaustibility, coal, coke, coal tar, coal gas, petroleum, natural gas and many other topics.

Coal and Petroleum - Class 8 Science Chapter 3 [Full Chapter]


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