Old lithosphere is destroyed in association with:
a. mid-ocean ridges spreading centers.
b. hydrothermal vents
c. fracture zones
d. deep-sea trenches

The correct answer is kettles.

Since wxyz is 4, halfof that would be 2.

Africans learned what the europeans wanted them to learn. instead of learning about african history and current information that could and would them they learned solely what europe wanted them to. and not everyone received the same education, some received better and others none.