Match the vocabulary item with its definition. 1 . groundwater a. agricultural products grown to be sold 2 . cash crop b. the removal of salt from something like ocean water 3 . desalinization c. water beneath the earth’s surface that supplies wells and springs 4 . organic farming d. crop production that minimizes the use of chemicals 5 . sustainable meeting current needs without reducing the ability to meet future needs

Where did the term “iron curtain” originate? the warsaw pact used the term iron curtain as a code word for communism. in a 1946 speech, british prime minister winston churchill said an iron curtain had fallen across the continent of europe. while visiting western europe in 1946, u. s. president harry truman commented that the mountains there looked like iron curtains. russian general secretary joseph stalin instructed citizens of eastern europe to hang iron curtains over their windows to protect themselves from stray bullets.