The criterion level, often abbreviated as Lc, is the steady noise level permitted for a full eight-hour work shift. This is 85 dB(A) in most jurisdictions, but it is 90 dB(A) in Quebec and 87 dB(A) for organizations that follow the Canadian federal noise regulations.
Royal Catchfly (Silene regia) This striking plant may grow as high as five feet, with bright red flowers. It flowers from May through September, and can be seen in remnant prairies and open woods. In Missouri, it is known only in the Ozarks.
Growing Soybean. The industry. The Soybean (Glycine max) is an irrigated summer growing oilseed crop whose grain in Australia has traditionally been used for oil extraction and the meal used in the stockfeed industries. More recently soybeans have become a popular culinary grain used in the making of Asian foodstuffs such as milk and tofu.