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MATCHING Identify the Letter of the Choice That Best Matches the the Phrase

question 71

Multiple Choice

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
-A value that a user enters whenever a query is run.


Definitions:

Fuel-Cell Cars

Vehicles that generate their power from a fuel cell, which produces electricity through a chemical reaction between hydrogen and oxygen, emitting only water.

Combustion Engine

An engine that generates mechanical power by burning a fuel-air mixture to create an explosive reaction.

Hydrogen

A chemical element with the symbol H and atomic number 1, known as the lightest element in the universe and a primary component in water molecules.

Commercial Energy

Energy produced and sold for profit, including electricity, natural gas, and other fuels used in the industrial, commercial, and residential sectors.

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