Answer in 200-300 word count. Choose one question below and title your answer with Reply. 256 Based on your reading, do you believe that we are in a period of glacial or interglacial stage? Why or why not? What are the current factors that might cause the acceleration of one stage over the other? One philosophy about pollution of water is that water can always be cleaned (e.g. by the use of distillation).  Is this a viable solution?  Why or why not? What are the different sources of water in the United States?  Which source of water is mostly used in your region?  How could we protect the sources of our water from drying up and contamination?

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