Choose the answer that best matches the word in italics. Use context clues to determine the meaning of the word, if necessary.

For many millennia, people believed Earth was flat.
Responses

reasons
thousands of years
generations of people
beliefs or propositions

thousands of years

thousands of years

The word in italics is "millennia." To determine its meaning, we can use context clues. The sentence mentions that people believed Earth was flat "for many millennia." From this context, we can infer that "millennia" refers to a long period of time.

The best answer choice that matches the meaning of "millennia" is "thousands of years."