The southern half of the mid-atlantic ridge separates the south american plate from which other plate?
a) antarctic
b) eurasian
c) indo-australian
d) african

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.