Plastics and polysaccharides are somewhat similar because they are both polymers. Polymers are a long chain of repeating units called monomers. Their difference, however, is the identity of their monomers. Plastics have hydrocarbons as monomers. Plastics with the monomer ethene is called polyethylene. For polysaccharides, their monomers are simple sugars.
having a lesser value by a process of depletion
How much is each gallon or how far are you going is the question you should be asking
The answer is C. Arrhenius bases increase the concentration of OH- in solution.