How did Hurricane Floyd contribute to dramatic water pollution in North Carolina?
A) Intense rain and river flooding caused poorly sited pig farm waste lagoons to overflow.
B) Intense winds damaged pig farm waste treatment facilities, rendering them inoperable.
C) Pig carcasses were washed into the ocean, where they decayed.
D) Careful preparation by pig farm operators prevented major water contamination despite the intensity of the hurricane.
A
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Aluminum metal undergoes the same basic corrosion process that iron does, yet it does not decompose as rapidly. Why?
A) The aluminum oxide does not flake off like rust and acts as a protective layer. B) Aluminum is harder to oxidize than iron. C) Aluminum is harder to reduce than iron. D) The aluminum oxide product undergoes a reduction to produce aluminum metal. E) The aluminum is galvanized, which prevents oxidation.
A(n) ________ is a structure in which the oldest rocks are located in the center
A) anticline B) syncline C) dome D) basin
What type of cloud that has a thin wispy appearance, consists of ice crystals, and often precedes a warm front?
A) cirrus B) stratocumulus C) cumulonimbus D) altostratus
Which of the following is true at the growing end of a daughter strand?
A) There must be a nucleotide with a free 3' hydroxyl. B) There must be a nucleotide with a free 5' hydroxyl. C) There must be a nucleotide with a free phosphate. D) There are no special requirements.