Fresh Water: A Rare and Precious Resource In Southwest Asia Chapter 11- Lesson 1 By Taylor Frentress Humans modify the environment and some of the possible consequences of those modifications
Sources of Water in Southwest Asia <ul><li>Oasis (oases – plural ) </li></ul><ul><li>An oasis is a place in the desert that has a dependable supply of water. Usually an underground spring. </li></ul><ul><li>Wadi – a surface of fresh water. Wadis are riverbeds that are usually dry. </li></ul>
Aquifers (underground sources of water) <ul><li>The most reliable source of fresh water. </li></ul><ul><li>Underground layers of rock or sand that hold water. </li></ul>
Exotic Rivers (surface sources of water) <ul><li>Rivers that start in a wetter area and flow into a drier area. </li></ul>
Moving Fresh Water <ul><li>Qanats – Underground canals </li></ul>
Water, Water Everywhere and Not a Drop to Drink! <ul><li>97% of Earth’s water is seawater. 70% of the world’s population lives on coastlines. </li></ul><ul><li>11,000 desalinization plants operate in 120 nations. </li></ul><ul><li>60% of those plants are in the Middle East [Southwest Asia] </li></ul><ul><li>Desalting plants produce 4 billion gallons daily. </li></ul><ul><li>Saudi Arabia leads the world in desalinization </li></ul>
Changing Seawater <ul><li>The technology is over 50 years old. </li></ul><ul><li>People in Southwest Asia and Northern Africa have adapted and modified their environment by building qanats, desalinization plants, and pipelines to deliver water to remote areas </li></ul>
QUESTION FOR ESSAY <ul><li>How do people of Southwest Asia attempted to solve their water shortage problems? </li></ul><ul><li>Write a short paragraph explaining at least two ways the people of Southwest Asia solved their water shortage problems. Be sure to have an introductory statement that restates the question. </li></ul>
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