When a glacial trough is "drowned" by the sea, the result is a(n) ________
A) fiord
B) cirque
C) horn
D) arête
Answer: A
Environmental & Atmospheric Sciences
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Mine tailings contain ________, which harms fish and other aquatic organisms
A) fly ash B) sulfide C) nitrogen D) oxygen E) lignite
Environmental & Atmospheric Sciences
Carbon dioxide currently has a concentration of ________ in the homosphere
A) 580 ppm B) 270 ppm C) 400 ppm D) 315 ppm
Environmental & Atmospheric Sciences
Where would you find an estuary?
A) In an area of high primary production within the pelagic zone B) Near a deep-sea vent, where sulfur provides chemical energy for organisms at the bottom of a marine food web C) Where a river flows into an ocean D) In a marine reserve, where fishing has been banned
Environmental & Atmospheric Sciences
Shield volcanoes are:
a. explosive. b. rhyolitic. c. the largest type of volcano. d. the smallest type of volcano. e. a type of caldera.
Environmental & Atmospheric Sciences