In the Photic Zone, the Major Limitation on Primary Productivity

question 9

Multiple Choice

In the photic zone, the major limitation on primary productivity is low

• A)light.
• B)nutrient content.
• C)salinity.
• D)temperature.

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Definitions:

Active Fault

A fracture in Earth's crust along which there has been recent movement and which is likely to produce earthquakes.

River

A large moving stream of water driven by gravity and flowing from higher to lower elevations.

Active Volcano

A volcano that has erupted in the recent past and is considered likely to do so again.

Iron-Nickel Meteorite

A type of meteorite consisting mainly of iron and nickel, typically formed from the core of ancient asteroids.