Because we can't take in light energy directly, we consume plants. Plants convert light energy into chemical energy through the process of photosynthesis. So when we eat plants, we get the chemical energy stored in the carbohydrates, which fuels all our physical activity. 
        
             
        
        
        
Answer:
Trophic Cascade
Explanation:
Trophic cascade is when the ecosystem experiences a level of a certain species being reduced or removed.
 
        
             
        
        
        
Answer:
False
Explanation:
its not the lithosphere, that's in the sky, its the crust thats broken into several large plates
 
        
             
        
        
        
Answer:
b. become part of the body's structural systems.
Explanation:
- Minerals are the inorganic regulators needed for different functions inside the body. 
- Minerals donot provide energy but involved in generation of energ through their metabolic function. (Hence option A is excluded)
- They provide a good medium for the protoplasmic activities (permeability of cell membrane and normal functioning of cell)
- Maintaining bod fluid balance.
- For structural units.
- Cannot be degraded in the body neither can be destroyed while cooking ( Hence option c and d are excluded)
- They become the part of the body's strctral systems (Hence option B is the right answer)