Yes, rocks are valuable because they are part of earths crust
        
             
        
        
        
Decomposers break down the remains of dead plants and animals and take the nutrients and energy and give it back to the earth when they die.
        
             
        
        
        
Option no. 2 a decrease in the release of oxygen gas
It is not simple because the process of growing crops, it needs more fertilizers, and processing the plants converting it to fuels needs a lot of energy. As much energy is used during the production from natural gas. The way of making biofuels it contains cellulose. Cellulose