The asthenosphere ________.
A) exists below a depth of 100 kilometers
B) is a subdivision of the outer core
C) exists below a depth of 700 kilometers
D) is a zone of strong mater
A) exists below a depth of 100 kilometers
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All chordates are vertebrates
Indicate whether the statement is true or false
Approximately how many years ago did our species, Homo sapiens, begin to migrate out of Africa and settle in Europe, Asia, and Australia?
A) 100 million years B) 100,000 years C) 1,000 years D) 1 million years E) 10,000 years
A soil with a large percentage of clay would be ________ and ________
A) porous, permeable B) nonporous, nonpermeable C) porous, nonpermeable D) nonporous, permeable E) fertile, red in color
Sustainable development differs from traditional economic development in that it emphasizes economic development in the
A. Past B. Present and past C. Short term D. Long term E. Present