For Most of Human History, We Have Received Many Ecosystem

question 160

Multiple Choice

For most of human history, we have received many ecosystem services free and have taken them for granted.These include clean air, clean water, pollination, and flood control by wetlands.Compared with a century ago, these types of ecosystem services seem to be

• A) unchanged.
• B) degraded in quality.
• C) improved in quality.
• D) more available.
• E) not measurable.

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Definitions:

Total Utility

The complete fulfillment derived from the consumption of a specific amount of products or services.

Marginal Utility

The extra pleasure or advantage obtained from the consumption of an additional unit of a product or service.

Beers

Alcoholic beverages made from fermented grains like barley, often flavored with hops and served as a popular social drink.

Oysters

Aquatic shellfish that are cultivated or harvested for food, pearls, and shell products.