Insects are bothersome to humanity. Some of them infect humans with deadly diseases. Thus far, humans have slowly been destroying insects by chopping away their homes, pushing them further into nature and out of humanity's way.
There are many nations ('tribes') of humans on Earth. Some have developed differently. There are three main regions that are influencial on a global scale: North America ( USA ), Europe, and Asia. These are the three super states. The USA is the most powerful of the three, taking up 2% of the world's population but guzzling 25% of the world's resources.
The USA has no real origin. It began 200 years ago when a group of explorers reached a resource-rich land in search of gold. They thought it was the West Indies, but it turned out to be America.
Over 200 years, the US has become THE global superpower, after developing nuclear weapons technology and medical advancements beyond the norm. When the cold war began (the war against communism that had no battles), there were two supernations: The Soviet Union and the USA. Europe was crippled at this time, and simply molded itself with the US.
The cold war ended with Soviet collapse in the 1990s, leaving the US to be the worlds' superpower. It has since made medical advancements that have been problematic toward humanity's future. 200 years ago, people lived 40 years. Now people live more than double that. This causes an aging workforce and a collapsing Social Security system.
While Earth may be a beautiful planet, avoid it at all costs. Humans WILL dominate those who attack them, and ultimately rule the universe.
"Yeah, let's stop by there after we divide these last few neutrons..."
The Earth is not entirely solid, there is liquid rock core in the center. This liquid core is probably where Earth gets its Magnetic Field. This magnetic field, in turn, blocks solar wind and other harmful radiation. The liquid nature of its core is apparently the cause of seismic activity in the surface.
The Earth's atmosphere is 71% Nitrogen, 21% Oxygen, and the rest being other gases such as Carbon Dioxide. The planet's plant life is a major source of the Oxygen. This is one of the major reasons why environmentalists protest against the destruction of tropical rainforests for timber and other resources.
About three-fourths of the surface of Earth is covered with water. It is able to exist in three states-solid, liquid, and gas-thanks to adequate temperatures maintained on Earth. Water is said to be essential to the formation of life.
With this abudance of liquid water and other necessary chemicals we see a plethora of life on Earth. Earth life forms vary from the microscopic bacteria, to the tall redwood trees, to the enormous Blue Whale. Among these life forms are the intelligent bipedal animals known as humans.
Humans are a peculiar life-form. With the intelligence and ability to manipulate objects with their hands, they have transformed the planet. They developed technology and culture. Their technology has aided in creation, quality of life, death, and destruction. Technology has built wonderous things like cities and temples and has helped improved the lives of people, but it is also used to destroy them too.