CBSE Class 8 Science Coal And Petroleum
Sample Q&A
- what is coal?
- Lowest carbon content ----
- Narrate story of coal either through text or pictorial presentation or audio piece. Hint: The story should contain its formation and its useful products.
- Why are thermal power plants situated near coal mines?
- types of coal
- why petroleum is known as black gold
- What is the composition of coal??
- Why is coke more porous than bituminous coal
- ईधन को जलाने के लिए हमें उसे उसके desh तक गम करना पड़ता है answer
- why coal is only made in abscence of air?which bacteria make it?
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