You Notice Mayfly Larvae Trying to Emerge from a Stream

question 47

Multiple Choice

You notice mayfly larvae trying to emerge from a stream being slowed down when they reach the surface.Why might this be?

• A)Because of the surface tension of the water.
• B)Because of the colder temperature at surface.
• C)Because of less oxygen at the surface.
• D)Because of higher flows at surface.

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Definitions:

Defined Benefit Plan

A pension plan that promises employees a fixed annual pension benefit at retirement, based on years of service and compensation levels.

Pension Plan

A retirement plan that requires an employer to make contributions into a pool of funds set aside for a worker's future benefit.

Annual Pension Benefit

The amount of money an individual receives annually from their retirement plan after retiring.

Variable Component

A cost or expense that changes in proportion to changes in a business’s activity level.