At a convergent boundary, plates come together and collide. Which
is often formed at this type of
boundary?
A. a mountain
B. a mid-ocean ridge
C. a sandbar
D. a barrier island

Which occurs when air is compressed? air molecules move slower. air temperature rises and air molecules move faster. air temperature decreases. air temperature decreases and air molecules move faster.

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.

What was the great rift valley formed by