When two plates of continental lithosphere collide

a. the plates become sutured together and mountains form

b. a rift valley forms

c. has a granitic composition

d. is thicker than continental lithosphere

The difference(s) between the grand canyon and valles marineris is/are: (a) the grand canyon was formed by water, but valles marineris was not. (a) valles marineris is much longer than the grand canyon. (c) valles marineris is much wider than the grand canyon. (d) valles marineris has large volcanoes near it. all of the above

Most countries in the middle east must import a majority of their a. gasoline b. oil c. food d. water

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire