Ozone pollution would be most favored in: a. sunny climates during the winter when volatile organic compounds can react with NO.
b. sunny climates in summer when coal is burned to generate electric power.
c. sunny climates during the summer when volatile organic compounds can react with NO.
d. sunny climates in winter when coal is burned to generate electric power.

Humans have built artificial levees along the mississippi river to protect themselves and their property from floods. however, these structures also modify inland and coastal regions by disrupting the natural flow of sediment. artificial levees along the mississippi river a. reduce the amount of sediment deposited on floodplains and increase the amount of sediment deposited at the river's mouth. b. increase the amount of sediment deposited on floodplains and decrease the amount of sediment deposited at the river's mouth. c. increase the amount of sediment deposited on floodplains and at the river's mouth. d. decrease the amount of sediment deposited on floodplains and at the river's mouth.