Question

Give the answers in one word: (1 × 4 = 4)

1) Substance whose presence is essential for combustion.

2) This type of fermentation occurs in absence of air.

3) This fuel is preferred to diesel or petrol for use in public transport.

4) This product is obtained in refining of petroleum at 250-350°C.​

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Answer 1

Answer: CNG GAS

Explanation: PLEASE MARK ME BRAINILEST

Answer 2

Answer:

1) Oxygen.

2) Anaerobic fermentation.

3) CNG ( compressed natural gas )

4) Crude oil.

Explanation:

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