Why Do Most Caves Form in Limestone Rock Formations

question 29

Multiple Choice

Why do most caves form in limestone rock formations?

• A)Limestone is a soft rock.
• B)Limestone dissolves in rainwater.
• C)Limestone is the most common kind of rock on Earth.
• D)Limestone chemically reacts readily with acidified groundwater.

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Definitions:

Cyclical Unemployment

Unemployment directly related to cycles of economic upturn and downturn.

Structural Unemployment

A form of unemployment caused by a mismatch between the jobs available and the skill levels of the unemployed, often due to technological changes or shifts in the economy.

Frictional Unemployment

Short-term unemployment occurring when individuals are between jobs or are seeking their first jobs.

Prosperity Phase

A period in the business cycle characterized by economic growth, high employment, and rising incomes.