Social Sciences, asked by Anonymous, 7 months ago

1. ____ is smokeless coal.
2. Petroleum is usually found in ____ rocks.
3. The domestic gas cylinder contains ______.
4. Hydrogen burns with a _____ sound.​

Answers

Answered by neha07113
5

Explanation:

1) Charcoal

2) Sedimentary rocks

3) Hydrocarbons

4) Pop sound.

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