Poor air and water quality, insufficient water availability, waste-disposal problems, and high energy consumption are exacerbated by the increasing population density and demands of urban environments. Strong city planning will be essential in managing these and other difficulties as the world's urban areas swell.
Answer: Potassium-argon dating
Explanation:
The climate of Peru is tropical. It has a large variety of climate and weather, including deserts and mountain areas, but it is mostly subtropical climate with rainforests.
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A bay is a water-body bounded by land on all three sides, and a peninsula is a piece of land sticking off a bigger piece of land and surrounded by water on all three sides.
