A) mountains B) major rivers C) deserts
A) Several countries have built dams along their portion of the river, cutting off water to those living downstream B) The rivers have nothing to do with the areas political conflicts C) Most countries do not allow water to be taken out of rivers for irrigation D) Many rivers dry up during the hot summers
A) inland lakes B) grasslands C) rich farming areas D) Desert
A) farmers have not been able to find ways to use the water for irrigation B) deserts prevent the rivers from being large enough to be useful C) everyone needs to be able to use the water and there is only a limited amount D) they can be used only for trade and travel but not for drinking water
A) less water comes down the river to those people once the dam is built B) Dams are expensive to build C) no fish can live in the rivers after they have been dammed D) a river can only be dammed in one place along its path
A) Shipping B) swimming C) flood control D) irrigation
A) Afghanistan B) Euphrates C) Tigris D) Jordan
A) buildup of salt in the soil B) surplus food C) full employment of farmers
A) leaving fruit and vegetables to rot in the rivers B) runoff from chemical fertilizer C) letting livestock drink in rivers
A) They reduce water flow downstream from the dam B) They are used to produce hydroelectricity C) They can be used for flood control
A) They start in the mountains B) They flow through multiple countries C) They end at the Persian Gulf |