The USA known as the States is a federal republic.It has 48 states and it has more than 9 millions square kilometers.It is the world's fourth largest country.It has around 318 million people.The people that dominates the population in the USA are the White Americans and Latino Americans.The others migrated from other countries.The language that is talked in USA in American English.Christianity is the most common practiced religion in the USA.The United States had 43 presidents.The 44th one and the actual one is Barack Obama
