Withdrawal symptoms vary with the substance, but some symptoms may include increased heart rate, shaking, insomnia, fatigue, and irritability. Substance abuse is continued use of a substance in spite of school-or work-related or interpersonal problems, but the user has not gotten dependent on the substance.The individual who abuses a substance may experience legal problems and may have problems fulfilling responsibilities, such as caring for a child.ithdrawal symptoms vary with the substance, but some symptoms may include increased heart rate, shaking, insomnia, fatigue, and irritability. Substance abuse is continued use of a substance in spite of school-or work-related or interpersonal problems, but the user has not gotten dependent on the substance.
ton. n. 1. A unit of weight equal to 2,000 pounds (0.907 metric ton or 907.18 kilograms). Also called net ton, short ton. 2. A unit of weight equal to 2,240 pounds (1.016 metric tons or 1,016.05 kilograms). Also called long ton. 3. A metric ton.
Cargo Tonnage: is either weight or measurement.. The weight ton in the United States and in British countries is the English long or gross ton of 2,240 pounds. In France and other countries having the metric system a weight ton is 2,204.6 pounds.