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Which of the following is not a water problem associated with cities?
Q18: Carbon dioxide makes up 21% of the
Q18: According to some economists, full-cost pricing would
Q22: Harmful chemicals emitted directly into the air
Q26: Which of the following is not an
Q28: Today there are _ megacities, cities with
Q47: Concerned citizens have persuaded Congress to enact
Q70: By the mid-eighteenth century, the most important
Q76: _ of the world's population lives on
Q78: Christians during the fifteenth and sixteenth centuries
Q94: Describe the origin and expansion of the