Chapt02EnvSci7eforprint
1/15/2013
Learning Outcomes
After studying this chapter, you should be able to answer the following questions: Chapter 2
Lecture
Outline
Insert 7th ed
Cover
Art here •What are systems, and how do feedback loops affect them?
•Explain the first and second laws of thermodynamics.
•Ecologists say there is no “away” to throw things to, and that everything in the universe tends to slow down and fall apart.
What do they mean?
•Explain the processes of photosynthesis and respiration.
•What qualities make water so unique and essential for life as we know it?
•Why are big, fierce animals rare?
•How and why do elements such as carbon, nitrogen, phosphate, and sulfur cycle through ecosystems?
2-2
© 2014 by McGraw-Hill Education. This is proprietary material solely for authorized instructor use. Not authorized for sale or distribution in any manner. This document may not be copied, scanned, duplicated, forwarded, distributed, or posted on a website, in whole or part.
Case Study: Working to Rescue an
Ecosystem
Chapter 2
*Challenges include excessive levels of nitrogen and phosphorus.
• Some parts I won’t focus on. Use this
PowerPoint and the study guide to help you focus your review. If a term is not on these materials it won’t be on an exam!
*Overharvesting and disease also contribute to declining productivity of the fisheries.
*After heavy rainfall people are advised to stay out of the water for 48 hours to avoid contamination from sewer overflow and runoff.
*Solutions that are in progress include capturing and selling nutrients from chicken manure, urban wastewater treatment, and soil conservation of farmland.
What challenges does a multistate ecosystem face that a system localized to one area might not face?
09/22/10
09/22/10
2-4
1
1/15/2013
An Ecosystem
2.1 Systems Describe Interactions
What are some materials or energy types that are moving through this system? • A system consists of materials and energy flowing from one part to the other. They are
Learning Outcomes
After studying this chapter, you should be able to answer the following questions: Chapter 2
Lecture
Outline
Insert 7th ed
Cover
Art here •What are systems, and how do feedback loops affect them?
•Explain the first and second laws of thermodynamics.
•Ecologists say there is no “away” to throw things to, and that everything in the universe tends to slow down and fall apart.
What do they mean?
•Explain the processes of photosynthesis and respiration.
•What qualities make water so unique and essential for life as we know it?
•Why are big, fierce animals rare?
•How and why do elements such as carbon, nitrogen, phosphate, and sulfur cycle through ecosystems?
2-2
© 2014 by McGraw-Hill Education. This is proprietary material solely for authorized instructor use. Not authorized for sale or distribution in any manner. This document may not be copied, scanned, duplicated, forwarded, distributed, or posted on a website, in whole or part.
Case Study: Working to Rescue an
Ecosystem
Chapter 2
*Challenges include excessive levels of nitrogen and phosphorus.
• Some parts I won’t focus on. Use this
PowerPoint and the study guide to help you focus your review. If a term is not on these materials it won’t be on an exam!
*Overharvesting and disease also contribute to declining productivity of the fisheries.
*After heavy rainfall people are advised to stay out of the water for 48 hours to avoid contamination from sewer overflow and runoff.
*Solutions that are in progress include capturing and selling nutrients from chicken manure, urban wastewater treatment, and soil conservation of farmland.
What challenges does a multistate ecosystem face that a system localized to one area might not face?
09/22/10
09/22/10
2-4
1
1/15/2013
An Ecosystem
2.1 Systems Describe Interactions
What are some materials or energy types that are moving through this system? • A system consists of materials and energy flowing from one part to the other. They are