Word: sedimented
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...already a slim margin of safety. Making the problem even worse is the loss of what Florida International University coastal expert Stephen Leatherman calls "living landforms," which would otherwise buffer that rise. Consider the wetlands that are an integral part of all river deltas, he says. Plants trap sediment from floodwaters flowing downriver, and the more they trap, the higher these wetlands grow. The problem is, people don't much like floods, so they build levees, which keep sediments from washing out of the rivers. They also don't much like wetlands, so they drain them. As a result...
...along the lake floor. Scientists think that the trenches, similar to those on ocean bottoms, are carved by currents of water that can also disperse toxic material. Other investigators will concentrate on collecting two shrimp like organisms in the food chain, including Ponto-poreia hoyi, that dwell on the sediment and may ingest toxic chemicals...
According to students on-hand, the water coming from the sprinkler had an odor and was full of black and brown sediment...
People have been advised to let their water run until it is free of visible sediment before bathing in or drinking...
...Powell. Braving the huge waves and submerged rocks in little wooden boats, they barely survived. These days, most boats are made of sturdy rubber, the guides are experienced oarsmen, and tourists pay for the thrill. The river averages a chilly 5.6?C, and July's rainy season churns up sediment that turns the Colorado chocolate brown. But the water's perils and the sun's searing heat are offset by the Canyon's peaceful aspects: from big-horned sheep scaling cliffs to ancient Pueblan red-clay homes. Intrepid rafters are now making the season's final trips, which...