Which of the following is NOT characteristic of polar ice-sheet climates?
a. the lowest mean annual and lowest summer temperatures recorded anywhere on Earth
b. bounded equatorward by the isotherm of 10?C (50?F) for the coldest month
c. air has generally low absolute humidity
d. receive enough insolation from the long summer days to allow considerable melting
B
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What would the concentration of OH- be if the concentration of H3O+ was 1 × 10-8M?[H3O+] × [OH-] = Kw = 1 × 10-14
A. 1 × 108 B. 1 × 106 C. 1 × 10-8 D. 1 × 10-6 E. 1 × 10-14
Features associated with ancient continental rift zones include faults, dikes, and sills. Indicate whether the statement is true or false
All of the following are features of greenstone belts except
a. volcanic and sedimentary rocks. d. complex folding and faulting. b. key index fossil assemblages. e. pillow lava. c. granitic intrusions.
Which of the following aqueous solutions of Na2SO4 is hypotonic with respect to a 0.15 M NaCl solution?
A) 0.05 M B) 0.10 M C) 0.15 M D) none of these