Non-Point Source Losses of Which Element Are Considered to Be

question 37

Multiple Choice

Non-point source losses of which element are considered to be a serious water pollution problem because the resulting high concentration of the element in stream water is toxic to most fish.

• A)potassium
• B)phosphorus
• C)both a and b
• D)neither a nor b

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Definitions:

Fishery

An area with a naturally occurring population of aquatic species which can be harvested for economic purposes.

Marine Animal

An animal that inhabits the ocean or other marine environments.

User Cost

The economic cost of using a resource today, which considers the lost opportunity of using it in the future.

Energy

The capacity to do work, manifested in physical forms such as heat, light, motion, and chemical energy, crucial to all aspects of life and industry.