Expiration is when food goes bad and idk how to help sorry
        
             
        
        
        
Answer:
• An acid is an electrolyte that hydrolyses in water to release hydrogen ions.

• pH level of an acid;
- Strong acid → 0 - 3.8
- Weak Acid → 4.0 - 6.7
 
        
             
        
        
        
Before the Calvin cycle begins the energy is stored in bonds of ATP
        
                    
             
        
        
        
Thalamus relays information from eyes to the visual cortex. Thalamus organizes inputs from sensory organs and routes them to the appropriate areas of the brain. I hope that this is the answer that you were looking for and it has helped you.