Choose the answer that best matches the word in italics. Use context clues to determine the

for many millenia people believed Earth was flat
reasons
thousands of years
generations of people
beliefs or propositions

reasons

The word in italics is "millenia". The best answer that matches this word is "thousands of years". This can be determined from the context clue "for many millenia" which suggests a long period of time.

Based on the context clues provided, the word in italics is "beliefs or propositions."

To determine the answer, we need to consider the phrase "for many millennia people believed Earth was flat." This tells us that the statement is talking about a long period of time during which people held a certain belief.

When we look at the options given, "beliefs or propositions" fits the context the best. The phrase suggests that people held a belief that the Earth was flat for many millennia.