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Life on Earth
Chapter 31 Earth's Diverse Ecosystems |
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| At a Glance |
  
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- Climate
- Both climate and weather are driven by the sun.
- Many physical factors also influence climate.
- The Requirements of Life
- Life on Land
- Terrestrial biomes support characteristic plant communities.
- Rainfall, Temperature, and Vegetation
- Life in Water
- Freshwater lakes have distinct regions of life and temperature.
- Freshwater lakes are classified according to their nutrient content.
- Marine ecosystems cover much of earth.
- Both climate and weather are driven by the sun.
