Which soil horizon may be red in color and contain clay?
A) O horizon
B) A horizon
C) C horizon
D) B horizon
Answer: D
Environmental & Atmospheric Sciences
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After a cold front passes, which of these does NOT usually occur?
A) falling barometer B) marked temperature drop C) clearing skies D) wind direction shift
Environmental & Atmospheric Sciences
________ waves travel only through solids; on reaching liquid or gas, the wave energy is reflected back into rock or is converted to another form.
A. S B. Rossby C. P D. Q
Environmental & Atmospheric Sciences
Currently there is extensive recycling of which of the following polymers?
A) low-density polyethylene B) polystyrene C) poly(vinyl chloride) D) none of these
Environmental & Atmospheric Sciences
Which of the following Gray whales are the first to migrate south?
A) Immature females B) Immature males C) Mature males D) Non-pregnant mature females E) Pregnant females
Environmental & Atmospheric Sciences