Answer:
The correct answer is oxygen.
Explanation:
Hope this helped Mark BRAINLEST!!
 
        
                    
             
        
        
        
Conservation and by recyclig we can improve biodiversity
        
                    
             
        
        
        
I believe that the correct answer would be Radioactive Dating of each layer because it give a precise age based on the amount of radioactive decay the rock releases over time 
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Photosynthesis is a process plants and other organisms use to create energy. The energy from sunlight, glucose, water, oxygen, and carbon dioxide are used by the plant to photosynthesize. These chemicals work together within the plant and produce energy. Oxygen is a product of photosynthesis that benefits humans and animals. Photosynthesis is essential for most plants to live.