Explain two of the following:
(a) the importance of irrigation and cooperative organisation for the success of Mormon settlements in the Salt Lake Valley
(b) the importance of the Homestead Act of 1862 for encouraging settlement of the Great Plains
(c) the importance of environmental factors, such as drought and harsh winters, in causing the failure of some Plains settlements
You must answer on TWO parts.
(Total for Question 17 is 16 marks)