Corrode

... as rain in our sky, it produces a thing called an acid. This is a weak acid, but it is still not good. Acids can burn eyes, skin, lungs, and even corrode metal. Rain mixed with acid is acid rain. Demonstration: Now the fun part begins. You need a solution of red cabbage. Put a several drops into ...

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... a large colony of bacteria. As experts explained later, these microorganisms exuded a metabolism product--an acid so strong that it could easily corrode the window the creatures had settled on. Besides this case, which rightfully belongs in the microbiology textbooks, the little angry bacteria ...

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