Fairview and Washington are the same distance from the equator, and both cities are near the ocean. The air temperature in Fairview is colder than the air temperature in Washington. What causes the air temperature in these places to be different?

This difference is due to ocean currents. These ocean currents come from different directions that pass these two cities.

Explanation:

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.