Question

define sublimation and winter​

Answer 1

When anything solid turns into a gas without first becoming liquid, that's sublimation. When the surface layer of snow or ice turns into fog or steam without melting, this is an example of sublimation.

Answer 2

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When anything solid turns into a gas without first becoming liquid, that's sublimation. When the surface layer of snow or ice turns into fog or steam without melting, this is an example of sublimation.

Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state. The reverse process of sublimation is deposition or desublimation, in which a substance passes directly from a gas to a solid phase.

Winter is the coldest season of the year in polar and temperate zones; it does not occur in most of the tropical zone. It occurs after autumn and before spring in each year. Winter is caused by the axis of the Earth in that hemisphere being oriented away from the Sun.