Earthquakes and tsunamis are caused by pressure building up in the Earth's crust along the intersection of tectonic plates, while tornadoes are created by updrafts and downdrafts interacting with wind.
The atmosphere and Earth's interior are layered by density. Gravity pulls more strongly on denser materials so denser materials are at the center of things. Earth's core, at its center, is denser than its crust.
Red Square (Russian: Кра́сная пло́щадь, tr. Krásnaya plóshchaď, IPA: [ˈkrasnəjə ˈploɕːətʲ]) is a city square in Moscow, Russia. It separates the Kremlin, the former royal citadel and now the official residence of the President of Russia, from a historic merchant quarter known as Kitai-gorod.
Earth is called a unique planet since it is the only planet in the solar system which supports life due to its balanced proportions of water, temperature, and oxygen
