The Earth Summit was
A. the first worldwide meeting dealing with environmental concerns.
B. held in Rio de Janeiro in 1992.
C. formerly known as the UNCED.
D. All of these are correct.
Answer: D
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A) have unusually low levels of biological activity B) have many decomposers and be able to hold considerable moisture C) have no cations D) have a very low mineral content E) have a large amount of vegetative detritus at the surface
Which of the following is not one of the major tectonic plates on the Earth's surface?
A) Juan de Fuca Plate B) North American Plate C) African Plate D) Pacific Plate
What temperature conditions are generally necessary for the decarboxylation of a carboxylic acid?
A) temperatures below room temperature B) room temperature C) temperatures slightly above room temperature D) very high temperatures
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