Intermediate and felsic magmas usually arise where:a
mafic magma mixes with felsic material.
b. volcanoes lie on continental margins inland of subduction zones.
c. plates diverge as spreading ridges form.
d. volcanoes lie above transform faults.
e. mafic magma mixes with felsic material AND volcanoes lie on continental margins inland
of subduction zones.
E
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Fill in the blank(s) with the appropriate word(s).
Net radiation (NET R) refers to
A) the net energy expended for ground heating and cooling. B) the balance of all radiation incoming and outgoing at Earth's surface. C) the amount of insolation coming into the surface. D) the amount of insolation not absorbed at the surface.
When a solution of Cu(II) chloride, CuCl2 , is added to a solution of potassium sulfide, K2S, a black precipitate of copper sulfide, CuS, forms. Which of the following is the molecular equation for this reaction?
A) CuCl2(aq) + K2S(aq) ? CuS(s) + 2 KCl(aq) B) Cu2+(aq) + Cl22-(aq) + K22+(aq) + S2-(aq) ? CuS(s) + K22+(aq) + Cl22-(aq) C) Cu2+(aq) + 2 Cl-(aq) + 2 K+(aq) + S2-(aq) ? CuS(s) + 2 K+(aq) + 2 Cl- (aq) D) Cu2+(aq) + S2-(aq) ? CuS(s)
Compared to an mP air mass, mT air is
a. warmer and windier. b. warmer and moister. c. colder and calmer. d. colder and moister. e. warmer and drier.