Answer : The balanced two-half reactions will be,
Oxidation half reaction : 
Reduction half reaction : 
Explanation :
Voltaic cell : It is defined as a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy. It is also known as the galvanic cell or electrochemical cell.
In the voltaic cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode.
The given redox reaction is:

The balanced two-half reactions will be,
Oxidation half reaction : 
Reduction half reaction : 
I think it would be C) The surrounding soil can become very fertile
Answer:
liquid has more attraction between molecules. It takes energy to break these forces to change the liquid to a gas.
Explanation:
because liquid has more attraction
Buffer solutions consist of an aqueous solution of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffer solutions are used to have better control of the pH of solutions.
An example of a weak acid and its conjugate base is acetic acid (CH3COOH) and sodium acetate (CH3COONa).