Answer: D. it lies in a valley, surrounded by mountains, that traps in air pollutants over the city.
Explanation: Being in a valley results in air pollution being contained to an area.
It was the ancient Persian empire my good sir <span />
In the early morning hours of June 4 1989 troops advanced into central Beijing along major thoroughfares, killing both demonstrators and bystanders.
Answer:
who is uncle Tom and where is his cabin
