The major cause of acid mine drainage is
a. bacterial and spontaneous oxidation of sulfide minerals.
b. the propagation cycle where H2S is oxidized to SO42–.
c. acids from the fermentation of organics in coal.
d. the initiator cycle where Fe3+ is oxidized to Fe2+.
Answer: A
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Which of the following is a terpene?
A) testosterone B) vitamin A C) glycerol D) phenanthrene E) dolichol
All plant organs (such as leaves, roots, and stems) contain tissues from all three tissue systems.
Answer the following statement true (T) or false (F)
What type of plant is corn?
a. C3 b. C4 c. CAM d. it becomes a CAM plant if grown in the desert e. it becomes a C3 plant if grown in cold climates
The plants and animals now present on acreage from which the trees were removed ten years earlier
represent a. primary succession. b. a climax forest. c. pioneer species. d. secondary succession. e. species introductions.