A lustrous, soft white metal, silver is one of the elements that make up the Earth. Silver is found in nature as an elemental metal in its metallic form and combined with other elements such as sulfide, chloride and nitrate. Pure silver has a bright metallic white-gray color; silver nitrate and silver chloride are powdery white in color, while silver sulfide and silver oxide are dark gray to black.
The native Polistes aurifer. (golden paper wasp) frequently. overwinters in attics of homes. The queens emerge during the. first warm days of spring (as. early as March and April), select. a nest site, and build a small. paper nest in which they lay.
The last antecedent to toilet paper was paper. The Egyptians were the first to discover that papyrus could be made into paper around 2500 B.C. In 105 A.D., a Chinese court official named Cai Lun discovered that paper could be made from trees. The Arabs learned how to make paper from the Chinese in 712 A.D. Spain received this technological innovation during Arab occupation in 1150.