What are two "hidden" contributions to economic development in Africa?
A) female entrepreneurs, civil service
B) remittances, street vendors
C) telecommunications, urban agriculture
D) remittances, telecommunications
E) civil service, untaxed housekeepers
Answer: B
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A. of lowered energy. B. different though identical. C. a mixture of being the same and identical. D. the same photons.
What number represents neutral pH
A. 9.0 B. 5.0 C. 7.0 D. 14.0
Which type of volcanic material will dominate the eruptions along a continental volcanic arc?
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________ is the largest planet in both radius and mass.
A. Earth B. Jupiter C. Mars D. Venus E. Mercury