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Yeah, why not? I just have a bias to associate things with civil.
When you’re talking about the fundamental sciences–chem, physics, and bio–bio is by far the least relevant to most engineering disciplines. But certainly, its uses fit in where needed. I once interned at a water reclamation plant–sewage treatment is actually largely biological. In the phase called secondary treatment, microbes are used to ingest undesired particles, and large structures (“blowers”) are needed just to supply the necessary oxygen to the bacteria because they’re “so weak.”</p>