 
 <prompt> Which one of di following no be wetin earthworms dey do: provide humans with bait, enable water and oxygen to penetrate the sea floor, or enrich the soil? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Earthworms na Oligochaetes wey dey support terrestrial food chains both as prey and for some regions dem dey important for aeration and enriching of soil. The burrowing of marine polychaetes, wey fit make up to one third of all species for near-shore environments, dey encourage the development of ecosystems by enabling water and oxygen to penetrate the sea floor. Apart from say dem dey improve soil fertility, annelids dey serve humans as food and as bait. Scientists dey observe annelids to monitor the quality of marine and fresh water. Although blood-letting no dey popular with doctors again, some leech species dey regarded as endangered species because dem don over-harvest dem for this purpose for the last few centuries. Ragworms' jaws dey now dey studied by engineers as dem offer an exceptional combination of lightness and strength. 