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Practice Listening: Highlight Incorrect Words
ID: #32835
Medium
A coal mine
* Click on the words that are different from what you hear
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Correct Transcript:
A coal mine can degrade its local environment. But a fungus may inadvertently help clean up the mine—with its own waste products.Researchers worked with a fungus called Stilbella aciculosa. As it makes spores, it also produces superoxide. That's a highly reactive kind of oxygen. When the released superoxide bumps into the mineral manganese in the environment, it makes that mineral much more reactive itself. The pepped-up manganese then grabs and holds a variety of toxic metals and other substances that need to be cleaned up and taken out of coal mine drainage water.The research, led by Colleen Hansel of Harvard and the Woods Hole Oceanographic Institution, appears in the Proceedings of the National Academy of Sciences. It's been known that various bacteria and fungi can help in environmental remediation.
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