What is one of the authors purposes in writing "The Thirsty Tree"? to show the futility of attempting to control the invasive salt cedar trees in the American Southwest to examine the history of environmental management in the American Southwest by focusing on the much-maligned salt cedar tree O to question the value of various interventions used to control the salt cedar tree in the American Southwest O to show that the salt cedar tree is the most important of all trees now in the Amencan Southwest landscape 1 2. 3 4 Finn > Rode ape S585770200 hip​