Steep-sided stratovolcanoes are made from lava that
A) is as runny as liquid water.
B) has a medium viscosity.
C) has a high viscosity.
D) can have any viscosity.
C
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Coulomb's Law: In outer space, a positive charge q is released near a positive fixed charge Q, as shown in the figure. As q moves away from Q, what is true about the motion of q? (There may be more than one correct choice.)
A. It will move with decreasing speed. B. It will move with constant acceleration. C. It will move with increasing acceleration. D. It will move with decreasing acceleration. E. It will move with increasing speed.
The last step in cosmic evolution is:
A) particulate evolution. B) stellar evolution. C) chemical evolution. D) biological evolution. E) cultural evolution.
________ are great wrinkle marks on Mercury's crust, due to its core contracting
A) Rilles B) Chaotic terrain C) Hollows D) Scarps E) Craters
A principle difference between an MHD generator and a conventional generator is that the MHD generator
A) has no moving parts. B) operates more efficiently at high temperatures. C) both of these D) neither of these