URGENT HELP PLEASE!!!
1.Which mineral is used in making cans and is found mainly in Australia?


hematite


bauxite


tektite


magnetite


2.Smelting is the major method used to refine and enrich which of the following?


oil


coal


iron ore


uranium ore

3.Which of the following is an example of sustainable use of natural resources?


harvesting huge populations of fish from a fishing shoal


clear-cutting a forest


planting multiple crops together on a field and harvesting them at different times


continuously strip mining coal deposits in an area