The average GNI adjusted for PPP in Sub-Saharan Africa was
A) $2200.
B) $3300.
C) the lowest in the world.
D) $2200 and the lowest in the world.
E) $3300 and the second lowest in the world.
D
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The place where aquifers are most likely to be contaminated is at
A. Artesian springs B. The zone of aeration C. Seeps and other outlets D. All discharge and recharge areas E. Recharge zones
Isotopes of the same element have
a. different numbers of protons, but the same number of neutrons. b. the same number of electrons, but different numbers of neutrons. c. different numbers of neutrons, but the same number of protons. d. different numbers of electrons, but the same number of neutrons. e. different numbers of protons and neutrons.
Heavy irrigation on a hillslope will cause ________.
A. decrease in shear strength B. increase in weight of the slope C. increase in pore-fluid pressure D. increase in shear force/stress E. All of the answers are correct.
What sort of evidence confirms worldwide shrinkage of glacial mass?
What will be an ideal response?