Why is the water in the ocean salty?
The water cycle: • There are about 1.5 billion km3 of water on Earth. • 97% of the water on earth is in the oceans. • Only 3% of the water on earth is freshwater. • About 2.4% of the water on earth is permanently frozen in glaciers and the polar ice caps. • About 1/2 of 1 % of the water on earth is groundwater. • Only about 1/100 of 1% of the water on earth is in the rivers and lakes. • Most cycling occurs through: • Evaporation • Transpiration • Precipitation Test your knowledgeof the water cycle. Petroleum Engineer In-class Assignment 271: This assignment must be turned in by the end of class today to receive credit. Scoring criteria • How much of Earth’s water is found in rivers and lakes? • Study this website to answer these questions: • Clouds are formed by condensation. What does water condense on to form a cloud? • What type of clouds are made of ice crystals? • Why does water move horizontally through an aquifer instead of downward? • Study this website to answer these question
