There is a difference between the Raw material used in Rayon and other synthetic fibres like Nylon or Polyester. What is da difference ?

Rayon is made by regenerating a natural fibre (cellulose fiber), whereas nylon and polyester are 100 % synthetic polymers.

In short, rayon is a semi-synthetic polymer whereas nylon and polyester are synthetic polymers.

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Yes , there are differences the proof is that their different properties like chemical reactivity, thermal comductivity, tensile strength etc

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contour farming,the practice of tilling sloped land along lines of consistent elevation in order to conserve rainwater and to reduce soil losses from surface erosion. These objectives are achieved by means of furrows, crop rows, and wheel tracks across slopes, all of which act as reservoirs to catch and retain rainwater, thus permitting increased infiltration and more uniform distribution of the water.

Contour farming has been practiced for centuries in parts of the world where irrigation farming is important. Although in the United States the technique was first practiced at the turn of the 19th century, straight-line planting in rows parallel to field boundaries and regardless of slopes long remained the prevalent method. Efforts by theU.S. Soil Conservation Service to promote contouring in the 1930s as an essential part of erosion control eventually led to its widespread adoption.

The practice has been proved to reduce fertilizer loss, power and time consumption, and wear on machines, as well as to increase crop yields and reduce erosion. Contour farming is most effective when used in conjunction with such practices as strip cropping, terracing, and water diversion.

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i m so sooooooooorrrrrryyy by mistake i have sent u....... :-((((((

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