All land in China is owned by the central government. Enterprises, farmers, and householders lease land from the state using long-term leases of 20 to 70 years. England and Wales. For land ownership in England and Wales see Land tenure in England, English land law and History of English land law. Ireland
Manganese is a trace mineral that is present in tiny amounts in the body. It is found mostly in bones, the liver, kidneys, and pancreas. Manganese helps the body form connective tissue, bones, blood clotting factors, and sex hormones.
It is used in black paints and to color glass purple. Manganese is responsible for the purple color in amethyst. Compounds of manganese are used in feed supplements and fertilizers. Biological Benefits. Manganese is a critical trace element. Manganese seems to lend a pliant, flexible quality to animal bone. A manganese deficiency in bone leads to brittle, easily broken bones.