Rwanda is the country in Central Africa and one of the most densely populated countries, and is surrounded by Burundi, Democratic republic of Congo, Tanzania and Uganda. It is been inhabited by tribal groups. The capital city of Rwanda is Kigali and their currency is Rwanda Franc. The majority of population speaks languages including Kiswahili, French, and Kinyarwanda. The country makes its revenue by exporting tin, coffee, and tea and tungsten ores. The life expectancy of people of Rwanda is 40 years. It has a temperate climate with two rainy seasons from February to April and November to January. The staple of the people of this country is pulses, cassava, beans, and sweet potatoes.