Word: nutrient
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Dates: during 1990-1999
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...Right now, pop music is flaccid. The prefab hype of Spice Girls, the sugar-shock kiddie ditties of Hanson, the admirable wholesomeness but inexcusable tiresomeness of Bob Carlisle, the horrific power screeching of Celine Dion--turn it off. Turn it all off. It's meaningless olestra music, artificial and nutrient-free...
...lander, computer-driven devices measured the soil samples and fed them into the miniature biology lab, where they were analyzed for signs of growth, metabolism and respiration, processes that would signal the presence of living microorganisms. In one of the tests, a soil sample dampened with "chicken soup"--a nutrient broth--gave off a burst of oxygen. In another, unexpectedly large amounts of carbon dioxide and carbon monoxide were released. While both results produced flurries of excitement at J.P.L., scientists eventually--though reluctantly--concluded that the gases resulted not from life processes, but from some exotic Martian chemistry. Their conclusion...
...tiny transparent worm measuring a millimeter from tip to tail, you would be nearly invisible to the naked eye. Nor would it be the way you spent your time. Moving little and eating less, you would pass all your days inside a Petri dish, resting atop a bed of nutrient...
...their competitors in many ways. Consider the erosion that accompanies deforestation and agriculture. No longer restrained by tree roots, tons of soil laden with nitrogen and phosphate washes into rivers and then sweeps into the sea, forming a muddy plume that may be hundreds of miles long. As this nutrient-rich water flows over a reef, it stimulates the growth of all kinds of algae--including the microscopic diatoms and dinoflagellates that nourish such reef animals as the crown-of-thorns starfish. In recent years hordes of these coral-devouring starfish have infested Australia's 1,200-mile-long Great...
...expel their zooxanthellae. Since it is the zooxanthellae that give coral colonies their rich coloration, their loss causes entire reefs to turn white. The stress that caused the recent bleachings, scientists say, was a seasonal spike in seawater temperatures. But other sources of stress, such as overfishing and nutrient overload, may have made the corals and their symbiotic friends unusually sensitive to heat...