1 Your heart rate. 2  Your heart rate offers a more objective look at exercise intensity. 3  In general, the higher your heart rate during physical activity, the higher the exercise intensity.
Major uses of cotton fibres. Source: Adapted from: Cotton Facts, International Cotton Advisory Committee (ICAC), 2003. The major end uses for cotton fibre include wearing apparel, home furnishings, and other industrial uses (such as medical supplies). The cotton fibre is made primarily into yearns and threads for use in the textile and apparel sectors (wearing apparel would account for approximately 60% of cotton consumption).
Cotton is composed of pure cellulose, a naturally occurring polymer. Cellulose is a carbohydrate, and the molecule is a long chain of glucose (sugar) molecules. History. Cotton has been used to make very fine lightweight cloth in areas with tropical climates for millennia.