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.
A gram is defined as one thousandth of a kilogram (which is defined as the mass of a metal reference weight that is stored in Paris.) One gram is about what one cubic centimeter (one milliliter) of water weighs. A US nickel weighs exactly 5 grams. There are 28.3 grams in an ounce, and 453.6 in a pound. Sometimes stuff that is measured in volume in the US is measured in grams in the metric system. For example, a tablespoon of butter (1/8 a stick) is about 15 grams. A milligram is 1/1000 of a gram, and a microgram is one millionth.