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.
Consumers access natural gas through millions of miles of pipelines that extract the hydrocarbons from their earthen reservoirs, remove impurities and transport it as mostly methane gas. If you have a gas stove, there are about five to 15 parts per million of natural gas in the air inside your home. More than 30 parts per million crosses into dangerous levels of natural gas and indicates a faulty stove. How do you know if the methane levels in your house are safe?