10pts which of the following is a true statement about ocean ridges? a, ocean ridges are split in the middle by rift valleys. b, ocean ridges are formed by earthquakes. c, ocean ridges provide evidence of a supercontinent. d, ocean ridges indicate boundaries of plate tectonics.

answer-the island had airfields that the u.s. military needed.

"a shortage of traditional labor created new opportunities in the workplace. a major cause of the internment of japanese americans during world war ii was. racial prejudice. in the early 1940's, the "destroyers-for-military-bases deal" with great britain and the lend-lease act were evidence that the united states."