1. Review Quiz 2
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2. If an organism is NOT a producer, what IS it?
A. Autotroph
B. Consumer
C. Plant

3. Correct!
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4. Incorrect!
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5. Where are greenhouse gases found?
A. Stratosphere
B. Hydrosphere
C. Troposphere

6. Correct!
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7. Incorrect!
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8. What is a community? A. One group of individuals of the same species
B. An individual living being
C. All the populations of different organisms living in a particular place

9. Correct!
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11. What is net primary productivity (NPP)?
A. Rate at which producers use photosynthesis – rate of storage = NPP
B. Rate of storage – rate at which producers use photosynthesis = NPP
C. Rate at which an ecosystems producers convert solar energy into chemical energy

12. Correct!
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14. What is a biogeochemical cycle (nutrient cycle)?
Cycle that collects and distributes the Earth’s supply of water
B. Made up of the elements and compounds that make up nutrients move continually through air, water, soil, rock, and living organisms within an ecosystem
C. Cycle that moves all the abiotic factors through the ecosystems of Earth

15. Correct!
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17. What is one way that scientists measure the carbon usage on Earth?
A. Take samples from all the plant types on Earth.
B. Taking carbon dioxide samples from the air around the world.
C. Using satellites.

18. Correct!
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20. What percentage of energy is typically passed from one trophic level to the next?
B. <10%
C. 50%

21. Correct!
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23. Which gases are greenhouse gasses?
A. Methane, nitrogen, carbon dioxide
B. Carbon dioxide, oxygen, water vapor
C. Water vapor, carbon dioxide, and methane

24. Correct!
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