The Millennium Ecosystem Assessment primarily characterized human impact on
A) atmospheric carbon dioxide levels.
B) degradation of the ozone layer.
C) ecosystem services.
D) plate tectonics.
Ans: C) ecosystem services.
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What is the most densely settled island of Indonesia?
A) Luzon
B) Borneo
C) Bali
D) Java
E) Sumatra
A line of tangency (also called a standard line) is a line
A) that always corresponds to a great circle. B) along which shearing occurs. C) along which no distortion occurs. D) divides Earth into two equal halves.
Which of the following can be formed when the ammonium salt derived from reaction of a carboxylic acid and an amine is heated to a sufficiently high temperature?
A) an amide B) an amino acid C) Either a or b, it depends on the identity of the salt. D) neither a nor b
Which of the following vertical zones of a large coral reef has light intensity of about 60% of the surface intensity?
A) From a few centimeters to a few meters B) From a few meters to 20 meters C) From 20 meters to 50 meters D) From 50 meters to 150 meters E) Below 150 meters