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.
The key natural resources of Ethiopia include gold, copper and platinum. The countryâs chief mineral and mining operations in 2010 included gold, cement, crushed stone and dimension stone production.thiopia is a significant exporter of gold and the countryâs largest gold mine is Lega Dembi in the Sidamo province. Midroc Gold, a company that operated Lega Dembi, produced about 3,100 kg/yr of gold.