Earth is the known planet and astronomical object that harbors life within it. Located in the Solar System as the third planet away from the Sun, Earth, according to radiometric dating and other sources of evidence, has been formed over 4.5 billion years ago. It revolves around the Sun in 365.26 days, a period known as an Earth year. Earth's axis of rotation is tilted with respect to its orbital plane, producing seasons on Earth. In addition, Earth is the densest planet in the Solar System and the largest of the four terrestrial planets.

Additionally, within the first billion years, Earth's history, life appeared in the oceans and began to affect the Earth's atmosphere and surface, leading to the proliferation of aerobic and anaerobic organisms. Since then, the combination of Earth's distance from the Sun, physical properties, and geological history have allowed life to evolve and thrive. Over 7.6 billion humans live on Earth and depend on its biosphereand natural resources for their survival.

Regarding the villain tournaments, Earth is featured as the primary location of the series in which most of the plot takes action on the planet, recounting about events, political changes, and creation of civil wars against minorites or majorites of any kind. It also appears as one of the royal battle sceneries, during a Space Arc of any villain tournament where it is threatened by various alien forces.

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