One major advantage with the use of renewable energy is that as it is renewable it is therefore sustainable and so will never run out. Renewable energy facilities generally require less maintenance than traditional generators. Their fuel being derived from natural and available resources reduces the costs of operation.and alternative energy is a vital group too
Estuary is a partly enclosed coastal body of water by which river water is mixed with seawater. In a broad sense, the estuarine setting<span> is defined by
salinity boundaries instead of geographic boundaries. The word estuary is derived
from the Latin words aestus (“the tide”)
and aestuo (“boil”), signifying
the effect produced when tidal flow and river flow meet.</span>
<span> </span>
C. Soft or mechanical soft
