El Niño is known to do what to weather
patterns?
A A. slightly alter the normal
weather patterns
B. intensify the normal weather
patterns
C. reverse the normal weather
patterns

It affects wind shear, which is when air currents at a lower altitude blow in a different direction from winds higher in the atmosphere

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.