State four positive effects of deserts features to man.
Answer Text: -A scenery that attracts tourists.-Extreme ground for testing bombs / films development.-Sand harvested for building and construction industry.-Loess deposit areas rich for agriculture.-Oasis provide water for settlement / livestock.-Salts from playas / salines exploited for income.-Strong winds tapped for energy / hot sun for solar energy.-Loess deposits curved into cool dwellings in summer.