Ch. 7 Lesson 4 p. 182-185
  • 1. Which kind of nitrogen do organisms need?
A) fixed
B) free
  • 2. True or false. The amount of energy and matter on Earth is limited.
A) False
B) True
  • 3. True or false. Nitrogen is a common element in the air that we breathe.
A) False
B) True
  • 4. True or false. Lighting does NOT fix nitrogen.
A) True
B) False
  • 5. Which of the following not a step of the water cycle.
A) evaporation
B) liquidation
C) condensation
D) transipiration
  • 6. What are three ways that water gets into the air?
A) Transipiration
B) All of these are ways that water gets into the air.
C) Evaporation
D) Breathing
  • 7. What is the most common element in all living things?
A) Oxygen
B) Carbon
C) Water
D) Nitrogen
  • 8. True or false. Carbon and water are necessary for there to be life on Earth.
A) False
B) True
  • 9. Timber wolves eat plants. How do you think that they get the nitrogen they need?
  • 10. Can humans survive long periods of time (months and years) without water?
A) No
B) Yes
  • 11. True or false. Water is necessary for all life.
A) False
B) True
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