One way that wealthier more urbanized countries like saudi arabia have dealt with the lack of freshwater is through a) deforestation. b) desalination. c) desertification. d) detoxification.

B. Desalination.

Saudi Arabia is the largest producer and (I think) consumer of desalinated water in the World. This allows coastal countries without freshwater aquifers to turn the ocean into safe drinking water that will sustain growing populations.

answer; i do believe its (b) 12.5 years of age;

i think it is the third one.