A glacier begins to flow when the ice reaches what critical thickness?
A)5 meters
B)10 meters
C)20 meters
D)40 meters
E)100 meters
D
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What type of earthquakes can occur due to the convergent plate boundary?
a. Only shallow earthquakes b. Only deep earthquakes c. Only earthquakes within crust d. Both shallow and deep earthquakes
Coal would not be considered a renewable source of biomass energy because ________
A) it was not formed from living organisms B) it does not contain organic material C) the organisms that formed the coal lived millions of years ago D) it releases carbon dioxide when burned
Diethyl ether can be made from ethanol. The reaction is: 2 C2H5OH(l) ? (C2H5)2O(l) + H2O(l) The percent yield of diethyl ether in one experiment was 94.0% and actual yield was 68.6 g. How much ethanol did the chemist use in this experiment?
A) 45.4 g B) 73.0 g C) 80.2 g D) 90.7 g
Which of the following statements is TRUE of the lithosphere?
A) The lithosphere is composed only of outer mantle material. B) The lithosphere is composed only of igneous rock. C) The lithosphere is composed only of metamorphic rock. D) The lithosphere is composed of the crust and the uppermost portion of the mantle. E) The lithosphere is composed of the inner portion of the mantle and the outer core.