Enormous forces are transmitted to the shore by the breaking of waves. The destructive impact of a great weight of water together with stones and other suspended matter hurled by the waves presents a major hazard to the inhabitants of the shore surface. Beneath the surface, burrowing forms are in danger of being crushed when waves churn the beach deposits. There is also the danger of dislodgement by waves, which may carry creatures up or down the shore to levels unsuitable for their survival. When masses of stones, sand, or organic debris are washed up and stranded by the waves, the shore population is in danger of becoming smothered. Continuous rapid movement of the water presents difficulties for the settlement and attachment of spores and larvae, and may prevent colonization of the shore except in crevices and sheltered parts.
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Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.