Question

Which of these does not need fuel?
i. cooking
1. transportation
iii. combustion
iv. crystallization​

Answer 1

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4.)Crystallization is the process in which solids are formed from a liquid or a gas phase. The direct gas-solid transformation is also known as desublimation or deposition. ... Crystallization from the liquid occurs much more frequently and there are well-known examples from nature as well as from industry.

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Answer 2

Answer:

Crystallization

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