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but. so. shading. then. releasing. which. Providing food for. and. which. as they. killing. Ponds and rivers are naturally low in minerals. If fertiliser washes from farmland. Water plants grow slowly. Water plants grow quickly. Plants growing below the surface.
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but so shading then releasing which Providing food for and which as they killing Ponds and rivers are naturally low in minerals If fertiliser washes from farmland Water plants grow slowly Water plants grow quickly Plants growing below the surface Don’t get enough light and die Dead matter Use up oxygen from the water Increase in numbers Bacteria and other microbes Animals that cannot tolerate it Carry out aerobic respiration