Which of the following has the greatest effect on Earth's seasons? A. the occurrence of El Niño or La Niña
B. the number of sunspots on the sun at a given time
C. the tilt of Earth's axis 23.5° from vertical
D. the number of cold fronts occurring each winter

How did the spanish-american war affect american expansionism? a.) america took control of hawaii, cuba, and the pacific islands of guam. b.) america took possession of cuba and the philippines. c.) america gained control of puerto rico and hawaii. d.) america gained control of cuba, puerto rico, the pacific island of guam and the philippines.

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world

Cesar chavez and dolores huerta confounded which of the following groups?