By the (Early/Middle/Late)____________________ Cambrian most of North America was covered by
epeiric seas with the exception of a highland known as the _________________________. Fill in the blank(s) with the appropriate word(s).
Late, Transcontinental Arch
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With a pulley having 2 strands supporting a load, to lift the load 1 m you pull a distance of
A. 2 m. B. 1 m. C. 1/2 m. D. more than 2 m.
Fractured rock masses tend to weather more easily than massive monolithic ones of the same
composition. Indicate whether the statement is true or false.
The initial formation of Earth involved the solidification and cooling of ________
A) sediments B) magma C) metamorphic rocks D) ice E) strata
The main chemical weathering processes all take place more or less simultaneously because they all require the presence of ________
A) water B) air C) hydrogen D) plants E) salt crystal growth