Living in the Environment 18th Edition by Tyler Miller,Scott Spoolman

Exercise 2

What is the key concept for this section What happens to matter in an ecosystem What is a nutrient cycle Explain how nutrient cycles connect past, present, and future life. Describe the hydrologic cycle , or water cycle. Summarize the unique properties of water. What three major processes are involved in the water cycle What is surface runoff Define groundwater. What is an aquifer What percentage of the earth's water supply is available to humans and other species as liquid freshwater Explain how human activities are affecting the water cycle in three ways. Explain how clearing a rain forest can affect local weather and climate ( Core Case Study ). Describe the carbon , nitrogen , phosphorus , and sulfur cycles , and explain how human activities are affecting each cycle.