1. Review for Exam 2
Website

2. Chapter 3
Life is sustained by the flow of energy from the sun through the biosphere, the cycling of nutrients within the biosphere and gravity
Some organisms produce the nutrients they need, others survive by consuming other organisms, and some recycle nutrients back to producer organisms
Human activities are altering the flow of energy through food chains and webs and the cycling of nutrients within ecosystems and the biosphere

3. Chapter 3
Explain the relationship between chemical cycling in ecosystems and the law of conservation of matter
What happens to energy in an ecosystem? Explain the relationship between the 2nd law of thermodynamics and the flow of energy through a food chain or web
What happens to matter in an ecosystem? What are some effects of human activities on the major nutrient cycles?
Know the definitions…

4. Chapter 4 Why should we protect sharks?
What is biodiversity and why is it important?
How does the earth’s life change over time?
How does climate change affect evolution?
How do speciation, extinction, and human activities affect biodiversity?
What is species diversity and why is it important?
What roles do species play in an ecosystem?
Know the definitions…

5. Chapter 5 How do species interact?
What limits the growth of populations?
How do communities and ecosystems respond to changing environmental conditions?
Know definitions…

6. Climate Change
What is the greenhouse effect? What are the greenhouse gases?
What is climate change?
What are the causes of this climate change?
What are the impacts of climate change?
Globally
On this region
On Lebanon specifically

7. Lebanon’s biodiversity
Understand the main species we have …
The risks to biodiversity
The impacts

8. Extra credit:
Submit no more than 2 questions (and their answers) for the exam
Deadline: Friday

9. Next … what do you prefer. Choose 3
chapter 6 – population (a bit)
chapter 10 - the ecosystem approach --
chapter 12 - food and soil 
chapter 22 - cities and sustainability 
economics and environment
environmental worldviews