What type of reaction is this? KAl3Si3O10(OH)2 + SiO2 --> Al2SiO5 + KAlSi3O8 + H2O
A) degassing
B) dehydration
C) decomposition
D) decay
Answer: B
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This figure depicts what type of boundary?
A) Oceanic divergent boundary
B) Ocean-ocean convergent boundary
C) Ocean-continent convergent boundary
D) Transform boundary
E) Continental collision
The two most recent epochs of the Neogene Period, from oldest to youngest, are
a. Pleistocene and Pliocene. d. Pleistocene and Holocene. b. Holocene and Pleistocene. e. Holocene and Paleocene. c. Holocene and Pliocene.
Which layer of the Earth is the thickest?
A) Crust B) Mantle C) Outer core D) Inner core
The arrows drawn perpendicularly to the contour lines on the contour map shown indicate the direction of the groundwater flow. In this example the groundwater is
A. flowing down the slope of the water table from higher contours to lower ones. B. flowing parallel to the slope of the water table from lower contours to higher contours. C. flowing up the slope of the water table from lower contours to higher contours.