The correct answer among the choices listed above is the first option. The number of growth rings is an indicator of the age of a woody plant. A growth ring a concentric layer of wood which is developed on a regular period of growth of a plant.
If we say something is beneficial, it must be positive
and really mean to give advantage to one thing or another. Wave energy is a
renewable energy since it can be used repeatedly over time without any problem
on supply. Hence the greatest benefit it can give would be:
decreased use of nonrenewable resources
