Wave energy remains constant as water depth changes.
        
             
        
        
        
Answer:
B. Major types of fossil fuels: coal, oil and natural gas
Explanation:
 
        
                    
             
        
        
        
I thought it was (d) but I might be wrong 
 
        
             
        
        
        
Progressive degeneration of the retina that affects night and peripheral vision is known as retinitis pigmentosa.
<h3>
What is retinitis pigmentosa?</h3>
- A collection of uncommon eye conditions known as retinitis pigmentosa affect the retina. 
- Retinitis pigmentosa causes the retinal cells to gradually deteriorate over time, resulting in visual loss. 
- RP is a hereditary condition that affects people at birth.
- The term "retinitis pigmentosa" (RP) refers to a group of illnesses that affect the retina's light-sensitive cells and impair vision. 
- There is currently no medication to stop the course of the disease, nor is there a cure. 
- Night blindness and tunnel vision are symptoms.
- Retinitis pigmentosa has no specific treatment. 
- However, using UV sunglasses to protect the retina in your eyes may help postpone the onset of symptoms. 
- For people with very advanced disease and severe visual loss, a retinal prosthesis (artificial retina) has been developed.
Learn more about retinitis pigmentosa here:
brainly.com/question/20593465
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