look at this 

USA is the most importan country in the world becaus it is a world power.Colombia is a country located in the tropics, which has coasts on the Pacific and Atlantic Oceans. Colombia is the country with the most biodiversity, offers a variety of environmental services, Colombia is the country richest in minerales. The United States is one of the largest countries in the world based on population and land area,
EE.UU has one of the largest economies, and one of the most diversos  populations
.Colombia is the best country because is beautyful and i´m colombian, it has more ecosystems than venezuela, and has more variety of animals than Ecuador. Colombia are more friendly than the USA. Usa is bigger than Colombia and has more People.  alaska is the largest state in the united states, the state of Alaska has the longest coastline in the United States with 10,686 kilometers. Colombia has more culture than the United States, in Colombia there are more celebrations than in the United States, however in the United States there are more tourist places