Cuts and scrapes may become infected when bacteria enter the wound, resulting in a skin infection. This causes changes in the texture of the skin and turns the surrounding skin red or white. Fungal infections, such as ringworm and tinea versicolor, can also trigger discolored skin patches on various parts of the body.
A plough (UK) or plow (US; both /ËplaÊ/) is a tool (or machine) used in farming for initial cultivation of soil in preparation for sowing seed or planting to loosen or turn the soil.
In ancient Chinese agriculture of the third century B.C., the iron plow was invented to make it easier to work the soil. These were called kuan or moldboard plows and were eventually pulled by oxen.