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<p>designed for commercial fish breeding and <a href="page.php?w=solar_pond">solar pond</a>s designed to store thermal energy. Ponds and lakes are distinguished from streams by their <a href="page.php?w=Flow_velocity">current speed</a>. While currents in streams are easily observed, ponds and lakes possess thermally driven micro-currents and moderate wind-driven currents. These features distinguish a pond from many other aquatic terrain features, such as <a href="page.php?w=stream_pool">stream pool</a>s and <a href="page.php?w=tide_pool">tide pool</a>s.</p><p>
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