1. which layer is most responsible for the movement of continents?

a. the outer core
b. the asthenosphere
c. the mantle
d. the continental crust
2. what is the main cause of earthquakes and volcanic eruptions?
a. the melting of oceanic crust
b. the continental crust cracking in a given location
c. collisions between tectonic plates
d. friction between the the mantle and the asthenosphere

Which of the following statements about geographers' perceptions and perspectives is false? a. geographers avoid looking at the world with different perspectives. b. regions are a relative thing and a matter of perception. c. spatial distribution can be a matter of perception. d. mental maps are a way that people memorize and perceive the world around them. select the best answer from the choices provided. a b c d

Which layer surrounds the center of the earth? a: crust b: core c: mantle

Is mars an inhabitable place for humans