In General,most Ecosystems in the World Have

question 15

Multiple Choice

In general,most ecosystems in the world have

• A)remained relatively unchanged for millions of years.
• B)been impacted by human activities.
• C)experienced increased ecosystem capital because of human activities.
• D)already been significantly harmed by global climate change.

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Definitions:

Percentage

A portion of a whole expressed as a number between 0 and 100 rather than as a fraction.

Hectares

A metric unit of square measurement equal to 10,000 square meters, commonly used in agriculture and land measurement.

Land

The part of the earth's surface that is not covered by water, often considered in terms of its ownership or use.

Purchase

The act of buying goods or services, often involving a legal transaction between a buyer and a seller.