Metal is a term used to describe a class of chemical elements that exhibit certain properties and characteristics. Metals are excellent conductors of electricity. Metals have attracted human attention for centuries because people were able to use metals to make high-performance tools that they used in both warfare and logistics. In the 20th century, the discovery and extraction of oil in the Middle East transformed the region's economy. West Asia has a geologically diverse landscape that has undergone complex geological processes over millions of years. Tanzania is a country located in East Africa, sharing borders with Kenya, Uganda, Rwanda, Burundi, the Democratic Republic of the Congo, Zambia, Malawi, and Mozambique. The economy of Tanzania is composed of the agricultural, industrial, and services sectors. Tanzania is one of the largest agricultural producers in Africa. Over 80% of the active population in the country is engaged in the agricultural sector. Major crops produced include cereals such as maize, rice, and wheat, as well as dates, coffee, watermelon, potatoes, and tobacco.
