Why do geologists drill through the oceanic crust in their attempt to reach the mantle? it is softer than the continental crust. it is thinner than the continental crust. it is younger than the continental crust. it is less dense than the continental crust.

How does the slope of the land affects the speed of lava flow

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.

Which movement developed in the early 1900s and encouraged the nationalist spirit of africans throughout the world? a. african nationalist b. tribalism c. pan-africanism d. african union