Only 16 or so elements are truly essential for plant growth. The rest of the elements present in plant tissue are largely taken up in small quantities incidentally (or accidentally!) as plants take up the nutrient elements that they need for growth and reproduction.
Turkey has the largest economy in the region, followed by Saudi Arabia and Iran. Petroleum is the major industry in the regional economy, as more than half of the world's oil reserves and around 40 percent of the world's natural gas reserves are located in the region.
Asia - Mineral resources: Asia has enormous reserves of coal, amounting to nearly three-fifths of the worldâs total, but they are unevenly distributed. The largest reserves are found in Siberia, the Central Asian republics, India, and especially China; Indonesia, Japan, and North Korea have smaller but nevertheless economically important reserves.