The pedogenic process that produces an illuviated accumulation of calcium carbonate in continental climates is
A) salinization.
B) calcification.
C) podzolization.
D) gleization.
E) laterization
B
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On weather maps cold fronts are drawn
a. in blue, with arrowheads showing the front’s general direction of movement. b. in red, with arrowheads showing the front’s general direction of movement. c. in blue, with arrowheads pointing away from the front’s general direction of movement. d. in black, with arrowheads showing the front’s general direction of movement. e. in red, with arrowheads pointing away from the front’s general direction of movement.
Which of the following might best explain the reason why electrons are restricted to certain energy levels in an atom?
A) They behave like restricted waves and are self-reinforcing. B) They are travelling at very high speeds. C) They are interacting with the light around the atom. D) They are out of phase and self-destruct when outside of distinct energy regions. E) They behave like chaotic waves of alternating frequency.
How does the wave model of electrons orbiting the nucleus account for the fact that the electrons can have only discrete energy values?
A) Electrons are only able to vibrate at particular frequencies. B) When an electron wave is confined, it is reinforced only at particular frequencies. C) The energy values of an electron only occur where its wave properties and probability clouds are mutually reinforcing. D) The wave model accounts for the types of orbitals an electron may occupy, not its energy levels.
Of earth's four overlapping spheres, which of the following doesNOT inviolve material above earth's surface?
A) atmosphere B) lithosphere C) biosphere D) hydrosphere