Hello,
Cinder Cone Volcanoes usually make up of Lava. These volcanoes are made of lava, not ash. Do not get that mistaken. 
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D. Friends of the scientists who wrote the articles 
Because the word “peer” is also another word for friends
        
             
        
        
        
B! dont worry im positive
        
                    
             
        
        
        
 Answer:  A new study in the journal Biotechnology for Biofuels has found that those wasted watermelons could be turned into up to 2.5 million gallons of ethanol. It turns out that watermelon juice is a great base to make ethanol from -- it's full of sugar and yeast-friendly amino acids. 
Explanation:
I hope it helps you!