Question

state two characteristics which a source of energy must have ​

Answer 1

Answer:

1. It should have high calorific value.
2. It should be able to provide energy for a long time.......

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Answer 2

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• It should provide a large unit of energy per mass.
• It should be easily available.
• It should be pollution free and renewable.
• It should have high calorific value.

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