The seashore or coastline (i) _______ the unique area where seawater borders land to create a diverse and very important ecosystem. It is special in that the freshwater carried along by rivers and streams flows into the ocean and mixes with salt water to provide rich nutrients and food to a variety (ii) _______ marine plants and animals. The wildlife along the coast is part of a never-ending food chain as each tiny insect (iii) _______ on its nourishment on other even smaller creatures; (iv) _______, any human (v) _______ in the life cycle of the seashore will cause irreparable damage to the environment in the long run.

(iii)____

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