If the Combustion of Fossil Fuels Adds About 5 *10¹²

question 105

Multiple Choice

If the combustion of fossil fuels adds about 5 *10¹² kg of carbon to the atmosphere as CO₂ each year, how much oxygen is required to produce this amount of carbon dioxide?

• A) about 1.3 *10¹² kg
• B) about 1.3*10¹³ kg
• C) about 2.6 *10¹² kg
• D) about 2.6*10¹³ kg
• E) about 6.7 * 10¹² kg

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Definitions:

Labradoodle

A hybrid dog breed created by crossing a Labrador Retriever with a Poodle, known for their friendly nature and hypoallergenic coats.

Queen Elizabeth

Refers to either Queen Elizabeth I of England, reigning from 1558-1603, known for the Elizabethan era, or Queen Elizabeth II, the current queen of the United Kingdom and other Commonwealth realms.

Yorkipoo

A mixed dog breed that results from breeding a Yorkshire Terrier with a Poodle, known for its small size and friendly disposition.

Labradoodle

A hybrid dog breed that results from the crossing of a Labrador Retriever and a Poodle, known for its friendly disposition and hypoallergenic coat.