It is high, containing a central basin with deserts and mountains. It has small discontinuous plains on both coasts. The climate is predominantly arid or semi-arid. It is subtropical along the Caspian Sea. Many people in Iran speak Persian, Azerbaijani and Turkish dialects, Kurdish, Gilaki and Mazandarani, Luri, Balochi, Arabic and others. (Iran cia.gov) The most widespread religions are Islam, Shiites, Sunnis, Zoroastrians, Jews, Christians and Baha'is. (Monstrous fact) The Iranian government is a theocratic and unitary state, a presidential system, an Islamic republic and a parliamentary system. The current population in Iran is 76.42 million people. The ethnic breakdown in Iran is 61% Persian, 16% Azerbaijani, 10% Kurdish, 6% Lur, 2% Balochi, 2% Arab, 2% Turkmen and Turkic tribes, and other ethnicities are