The solute is the part of the solution that dissolves in the second component (usually a fluid). Therefore, for the mentioned solution, the solute is ehyl alcohol since it is the one dissolving in water.
As for the solvent, it is the component in which the solute dissolves. In this case, it is water.
Plants require pH to thrive which in turn gives us food.
They have a different amount of neutrons.
c well actually I remember being tought this but I cant remember it 100