These issues present challenges for regional urban areas: housing availability, pollution and rural migration. Housing availability is one, because there are many people looking for housing in those areas, pollution because urban centers often have industrial sites where toxic fumes are released into the air, as well as transportation pollution and rural migration, because people from rural areas come to urban areas often to look for jobs.
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Answer:</h3>
B. 186,000 miles/second
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Explanation:</h3>
The speed of light is approximately 186,282 miles per second.
The closest answer choice to this is B. 186,000 miles/second.
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