By the Middle of the Century, About How Much Energy

question 58

Multiple Choice

By the middle of the century, about how much energy could come from fossil fuels?

• A)20%
• B)40%
• C)60%
• D)80%

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Definitions:

Suffix

A morpheme added at the end of a word to form a derivative or alter its meaning.

Combining Form

A prefix or suffix added to a word root to change its meaning or create a new word.

Vowel

A speech sound produced without any significant constriction of the flow of air from the lungs, forming the nucleus of a syllable in languages.

Otorhinolaryngology

A branch of medicine specializing in the diagnosis and treatment of disorders of the ear, nose, and throat (ENT).