True or false: -the water in a river is warmest at its headwaters. -the waters in an ocean are coldest in the neritic zone. -cities are usually colder than their surrounding regions.

Which of the following statements best describes what is occurring in the land surrounding the sahara desert? a desertification is increasing, and the desert is expanding. b. fewer people are trying to farm in this semiarid region. c. the desert is shrinking with the increased use of irrigation. d. increased urbanization has resulted in decreased deforestation. select the best answer from the choices provided mark this and return save and exit next submit