Which Process Represents a Step in the Nitrogen Cycle

question 17

Multiple Choice

Which process represents a step in the nitrogen cycle?

• A) Nitrogen-fixing bacteria convert atmospheric nitrogen to nitrates.
• B) Nitrites bind to soil particles.
• C) Nitrogen-fixing bacteria convert atmospheric nitrogen to ammonia.
• D) Denitrifiers convert ammonium to atmospheric nitrogen.

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Definitions:

Electroplating Operation

A process that uses electrical current to reduce dissolved metal cations so that they form a metal coating on an electrode.

Negative Terminal

The terminal of an electrical device (such as a battery) through which current flows out, typically regarded as the source of electrons.

Cathode

The negative terminal of an electric device.

Lead-acid Batteries

A type of rechargeable battery that uses lead peroxide and sponge lead, employing a sulfuric acid electrolyte.