The genetics of red hair appear to be associated with the melanocortin-1 receptor (MC1R), which is found on chromosome 16. Eighty percent of redheads have an MC1R gene variant.
I cannot find this source for this I'm sorry. I meant to add it but I lost the site
 
        
             
        
        
        
Answer:
Heat energy is the answer
Explanation:
I hope that answers your question.
 
        
             
        
        
        
Answer
CORRECT ANSWER  ► B
B- A periodic warming sea surface temperatures
☺☺☺