Answer: Biomass 
Biomass produces gas or many sorts of waste products which are mostly used in burning and cooking. It is plant or animal material used as fuel to produce electricity or heat. Examples are wood, energy crops, and waste from forests, yards, or farms. 
But the reason why it can be harmful is because biomass can produce gases like methane. Methane is a  greenhouse gas which can harm the environment and reduce the ozone layer that stops harmful UV light from reaching the earth atmosphere.
 
        
             
        
        
        
The process in which a gene from one organism is inserted into the DNA of another organism is called genetic engineering or recombinant DNA technology. It is done to transfer the desirable trait of one organism to another to produce a better organism.
        
             
        
        
        
its H because his maternal grandfather is on his moms side of the family and has the recessive allele not his grandfather on his dad's side
 
        
             
        
        
        
Fat, Cholesterol, Heart Attacks/Strokes