In Many Scientists' Opinions,what Is the Key to Saving the Ecosystems

question 31

Multiple Choice

In many scientists' opinions,what is the key to saving the ecosystems of the Gulf of Mexico?

• A)organic farming
• B)watershed management
• C)tighter control of point source pollution
• D)harsher punishments and fines for noncompliance with the Clean Water Act
• E)purification of the water entering the Gulf

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Definitions:

World's Fair

Large international exhibitions designed to showcase achievements of nations in the fields of science, technology, culture, and art.

Genetic Variation

The natural differences in genes among individuals of a species.

Racial Categories

Classifications of humans based on shared physical or social qualities into groups generally viewed as distinct within a given society.

Arbitrary Manner

A way of deciding or acting that is not based on system or plan, but instead on random choice or personal whim.