Provide an example of at least one interaction for each pair of spheres. 1. lithosphere and atmosphere: 2. lithosphere and hydrosphere: 3. lithosphere and biosphere: 4. hydrosphere and atmosphere: 5. hydrosphere and biosphere: 6. atmosphere and biosphere:

1. lithosphere and atmosphere: Volcanic eruption - adds sulfur dioxide, carbon dioxide and dust to atmosphere 
2. lithosphere and hydrosphere: Underwater earthquake causes Tsunami Sea floor spreading causes ocean to expand 
3. lithosphere and biosphere: Plans absorb minerals essential for growth from soil Accumulation of vegetation results in peat bog, and finally coal 
4. hydrosphere and atmosphere: Air moving over warm water takes up water vapor 
5. hydrosphere and biosphere: Coral working on reefs precipitate calcium carbonate to form more reefs 
6. atmosphere and biosphere: Respiring animals take oxygen from the atmosphere and return carbon dioxide Plants use photosynthesis to take carbon dioxide from the atmosphere and generate oxygen and organic matter. :)

Where's the picture of the model?