What Limits Productivity in Polar Regions

question 20

Multiple Choice

What limits productivity in polar regions?

• A)low temperatures of the surface waters
• B)high density of the surface waters
• C)The thermocline acts as a barrier to mixing of surface and deep waters.
• D)the lack of sunlight year round
• E)all of the above

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Definitions:

Absolute Value Inequality

An inequality that involves the absolute value of a variable or expression, comparing it to a number.

Absolute Values

The distance of a number from zero on the number line, disregarding the sign of the number.

Equation

A mathematical declaration affirming that two expressions hold equal values.

Solution

A means by which an issue or problem is solved, or in chemistry, a homogenous mixture of two or more substances.