Water Resources and Environment. The jurisdiction of the Subcommittee on Water Resources and Environment consists generally of matters relating to water resources development, conservation and management, water pollution control and water infrastructure, and hazardous waste cleanup.
A pennyweight (abbreviated dwt) is a unit of mass that is equal to 24 grains, 1â20 of a troy ounce, 1â240 of a troy pound, approximately 0.054857 avoirdupois ounce and exactly 1.55517384 grams.
One troy ounce equals 20 pennyweights, and one pennyweight equals approximately 1.555 grams. To demonstrate the differences between the various units of weight, suppose you use your postage scale to weigh the scrap jewelry youâre planning to sell.