The photograph shows part of the great plains of north america. what is one way a plain can form? o a. continental plates slip past each other. o b. erosion from wind, water, or ice removes crustal material. o c. tectonic movements make folds in the crust. o d. magma rises at a convergent plate boundary.

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.