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Wikipedia about grass


Use of the term
The term grass is often used to describe related plants in the rush (Juncaceae) and sedge (Cyperaceae) families, that somewhat resemble grass. It may also be used to describe completely unrelated plants, sometimes of similar appearances to grass, with leaves rising vertically from the ground, and sometimes of dissimilar appearance. The term came about in the early 15th century, from the Old English græs, derived from the same root as "grow". A single piece of grass is called a blade.
Importance

Plants of this type were always important to humans. They were cultivated as food for domesticated animals for up to 10,000 years. (See grass fed beef.) They have been used for paper-making since at least 2400 BC. Now they provide the majority of food crops, and have many other uses, such as feeding animals, and for lawns. There are many minor uses, and grasses are familiar to most human cultures.
In some places, particularly in suburban areas in the United States and Canada, the maintenance of a grass lawn is a sign of a homeowner's responsibility to the overall appearance of their neighborhood. Many municipalities and homeowner's associations have rules about this. Some require lawns to be maintained to certain specifications, sanctioning those who allow the grass to grow too long. In communities with drought problems, watering of lawns may be restricted to certain times of day or days of the week.

In sports

Grass is also used in several contexts in sports, most notably with sports played on fields such as football, cricket, baseball, and rugby. In some sports facilities, including indoor domes and places where maintenance of a grass field would be difficult, grass may be replaced with artificial turf, a synthetic grass-like substitute. Sports such as cricket, golf and tennis are particularly dependent on the quality of the grass on which the sport is played.
A cricket pitch often starts with a thin cover of green blades, but over the course of a five-day match tends to dry out and harden. Even in one-day matches cricket pitches are often nearly bare earth covered only by a layer of dry yellow stalks. A green or moist pitch favours the bowler, as it varies the bounce of the ball and increases its movement. A hard, dry pitch gives a more predictable, higher bounce which favours the batsman. The nature of the outfield is also important, as grass may slow down a ball, causing it to stop before reaching a boundary or allowing a fielder more time to gather the ball. Laws 10 and 11 of cricket detail maintenance and protection of the pitch. Unlike test cricket and One Day International, indoor cricket is played on an artificial surface.
























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