Constant wars were occurring in the fertile crescent between tribes that wanted the rich soil.
true
false

Click the item in the left column. use the plus sign to move it up or the minus sign to move it down until it matches the correct entry in the right column. lock your answer in place by clicking the square beside the item. (a checkmark means it is locked.) amazon basin a atacama desert b andes mountains c lake titicaca d peru e patagonia f brazil g chile h suriname

Where does the availability of water pose the greatest problem

People make choices about how to use resources.