70 points 1. how are minerals used and how do scientists identify them? give two examples of each. 2. why are minerals considered non-renewable resources? is this something we should be concerned about? why or why not? 3. compare and contrast minerals and rocks. 4. describe how scientists think the three (3) different types of rocks form. design a procedure you might use to classify what type of rock a sample is. 5. explain the relationship between soil and other earth systems. why is soil conservation necessary? how might a farmer determine the type of soil he or she needs to grow a certain crop?