In Depth: Chest. A womanâs chest â like the rest of her body â is covered with skin that has two layers. 1  The epidermis is the outermost layer that provides a protective, waterproof seal over the body. 2  The dermis is the under layer that contains sweat glands, hair follicles, blood vessels, and more.
Natural gas is furnished by privately owned Puget Sound Energy, which began its existence in 1886, generating electric power as the Seattle Electric Light Company.
Natural gas can heat your home by creating warm air, hot water or steam. The most. common type of system in the United States is a forced-air central heating system that. uses a natural gas burner to heat air. The air is then circulated through duct work in the. home by a blower or fan.