1. what percent of the water on earth is salt water? 2. what percent of the water on earth is freshwater? 3. where is the greatest amount of fresh water found on earth? 4. why is water considered a universal solvent? 5. what is runoff? 6. describe evaporation. 7. what is condensation? 8. what is transpiration? 9. how does transpiration occur? 10. evaporation, condensation, precipitation all are parts of what cycle?