Which one of the following is the best analogy to the movements of continents by plate tectonics?
A) A worm tunneling through soil
B) Noodles drifting throughout a cup of chicken noodle soup
C) Air mattresses drifting about on the top of a swimming pool
D) A train running along its tracks
C
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Water is a major agent of weathering because of its property that, when it freezes, it decreases in density and _______.
a - stays in liquid form below 0 degrees celsius b - expands in volume c - turns white d - evaporates e - turns acidic
The proportions of dissolved gases in the ocean are very different from the proportions of the same gases in the
atmosphere because of differences in their ____________ in water and air. Fill in the blank(s) with the appropriate word(s).
Matter is anything that ____.
A. has mass and takes up space B. has the capacity to do work C. can be changed in form D. can produce change E. moves mass
Which of the following tectonic settings is the most likely to generate an explosive volcanic eruption?
A. rift valley B. fold mountain belt C. oceanic hot-spot D. mid-ocean ridge E. subduction zone