Answer:
D
Explanation:
Crude oils, shale,  and natural gas are some of the fossil fuels formed in this way. They are specially formed when vast amounts of algae die and sink to the bottom of the oceans over time and accumulate with sediments. They become buried under vast layers of sediments that apply high pressure. Over time, the high pressure and temperature turn the organic molecules into fossil fuels. 
 
        
             
        
        
        
The answer is A. macromolecules 
There are 4 types of macromolecules; lipids, proteins, carbs and nucleic acids
        
             
        
        
        
The mRNA codon GAG corresponds to the tRNA molecule that can carry more than one amino acid <span>is one possible reason that Mutation 2 leads to the production of normal blood cells rather than the sickled blood cells.</span>
        
                    
             
        
        
        
Answer:
c chemical fertilizers they are produced vy people used on plants and the run off leads to water sources
 
        
             
        
        
        
Energy in a system is doing work such as kinetic and potential energy, that helps things move. Also more such as chemical, heat, thermal, etc.