A poster explaining Freshwater Ecosystems.
Information on poster:
Freshwater ecosystems, such as lakes, ponds, rivers, streams and wetlands, are small compared to marine (ocean) ecosystems. Unlike marine ecosystems, freshwater ecosystems contain little salt content. They are very fragile and can become unhealthy if there is an imbalance of bacteria or algae. They are also very susceptible to pesticide or chemical contamination.
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