Why Are Organic Reefs Useful Paleoecological Indicators

question 26

Multiple Choice

Why are organic reefs useful paleoecological indicators?

• A)Organisms only form limestone reefs in cold, tropic waters.
• B)Organisms only form limestone reefs where there is a great abundance of mineral matter in the water.
• C)Organisms only form limestone reefs in warm, clear, shallow water.
• D)Organisms in the modern world only form limestone reefs between 30 degrees north and south of the equator.
• E)Modern organisms only form limestone reefs in warm, clear, shallow water, between 30 degrees north and south of the equator.

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Definitions:

Gross National Product

The total value of all goods and services produced by a country's residents over a specific time period, including income from overseas investments.

Services Provided

The actions or activities carried out by a company or an individual to satisfy a customer's needs or wants.

Human Development Index

An index measuring three basic dimensions of human development: life expectancy, education, and per capita income indicators, used to rank countries into tiers of human development.

Purchasing Power Parity

An economic theory that compares different countries' currencies through a "basket of goods" approach, to assess the relative value of the currencies and the cost of living.