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Card 6
Front
Explain Why Human Systems are Often Not Sustainable?
Back
Card 7
Front
Why are Eco-Systems Often Not Perfectly Closed-Loops?
Back
Card 8
Front
Explain Why the Input to an Eco-System Should Equal the Losses.
Back
Card 9
Front
What is the Source of Energy for All Eco-Systems?
Back
Card 10
Front
How does Burning Fossil Sunlight Energy Alter the System?
Back
Card 11
Front
Describe How Nitrogen is Recycled in an Eco-System.
Back
Card 12
Front
Explain the Role of Micro-Organisms in an Eco-System.
Back
Card 13
Front
Explain the Role of Digestive Enzymes in an Eco-System.
Back
Card 14
Front
Explain Why Some Plants Apparently Over Produce Pollen.
Back
Card 15
Front
What is Meant by Deforestation?
Back
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