In sana'a, yemen, farming of the qat plant has caused farmers a. overuse the city's water supply. b. contribute to widespread fires. c. create smong and air pollution. d. create a massive urban heat island.

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.