Each Year, Burning of Fossil Fuels Moves About __________ Billion

question 7

Multiple Choice

Each year, burning of fossil fuels moves about __________ billion metric tons of carbon to the atmosphere.

• A)1
• B)6
• C)19
• D)32

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Definitions:

Citric Acid Cycle

A sequence of biochemical processes that all oxygen-using organisms employ to produce energy by converting acetate, obtained from carbohydrates, fats, and proteins, into carbon dioxide.

Acetyl Group

A 2-carbon group derived from acetic acid (acetate).

FADH₂

A reduced form of flavin adenine dinucleotide, a redox-active coenzyme involved in cellular respiration.

Aerobic Respiration

A metabolic process that uses oxygen to convert glucose or other organic substrates into energy, carbon dioxide, and water.