The rise in unemployment that occurs because of a recession is known as cyclical unemployment, because it is closely tied to the

Business cycle

Explanation:

Cyclical unemployment is when employment level changes with the business cycles. Unemployment increases when there's a downturn in the economy and reduces when there's an upturn in the economy.

During downturns, firms demand for labour falls and unemployment increases.

During a boom, firms demand for labour increases and unemployment falls.

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