Straw



         


stalk of a cereal plant, after the nutrient grain or seed has been removed. Straw makes up about half of the yield of a cereal crop such as wheat, oats, rye or barley. In times gone by, it was regarded as a useful by-product of the harvest, but with the advent of the combine harvester, straw has become more of a burden, almost a nuisance to farmers.

However, straw can be put to many uses, old and new.

Uses of straw




A straw is also a device used for sucking up a liquid. A thin tube of plastic or other material, it is employed by being held with one end in the mouth and another end in the drink. Muscular action reduces air pressure in the mouth, whereupon atmospheric pressure forces the drink up the straw.

Straws may be straight or with a folding hinge.






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