Fluids are the substances which can flow and doesn't maintain a fixed shape.

True

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False

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Solution

The correct option is A True
Fluids are substances which can flow and do not maintain a fixed shape. Gases and liquids do not have a fixed shape and they keep flowing unless they are held in a container. This means that both gases and liquids can be called fluids. Solids are not fluids because they are rigid in nature.

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(d) What is the process of conversion of X into Z known as?

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