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.
Geothermal Energy. Geothermal energy is derived from the heat in the interior of the earth. California's location on the Pacific ring of fire, provides the potential for world-class geothermal energy resources.The Geysers production area, north of San Francisco, is the world's largest geothermal energy producer.eothermal energy is derived from the heat in the interior of the earth. California's location on the Pacific ring of fire, provides the potential for world-class geothermal energy resources.