The following sentences contain blanks. Use the drop-down menus to complete each blank correctly. Today about 40 percent of the world’s population lives within 62 miles of a coastline. The effects of climate change put these people at risk because of [Dropdown 1] . Climate change also threatens settlements in areas experiencing desertification, which reduces water and food supplies and forces many to [Dropdown 2] . However, rising temperatures might benefit once-colder regions. Warmer temperatures may boost crop production in those places, because farmers will have [Dropdown 3] .