Interior Of The Earth Wikipedia

An outer silicate solid crust a highly viscous asthenosphere and mantle a liquid outer core that is much less viscous than the mantle and a solid inner core.

Interior of the earth wikipedia. The earth has an outer solid layer called the crust a highly viscous layer called the mantle a liquid layer that is the outer part of the core called the outer core and a solid center called the inner core. About 74 of the surface of earth is covered by liquid or frozen water. Earth is the only planet in our solar system that has a large amount of liquid water.

Scientific understanding of the internal structure of earth is based on observations of topography and bathymetry observations of rock in outcrop samples brought to the surface from greater depths by volcanoes or volcanic activity analysis of the seismic. The shape of the earth is an oblate spheroid because it is slightly flattened at the poles and bulging at the equator. Earth is the third planet from the sun and the only astronomical object known to harbor life according to radiometric dating estimation and other evidence earth formed over 4 5 billion years ago.

Because of this people sometimes call it the blue planet. Journey to the center of the earth also translated with the variant titles a journey to the centre of the earth and a journey into the interior of the earth is a classic science fiction novel by jules verne. It was first published in french in 1864 then reissued in 1867 in a revised and expanded edition.

Earth s internal heat powers most geological processes and drives plate tectonics. Professor otto lidenbrock is the tale s central figure an eccentric german scientist who believes there are volcanic tubes that reach to the very center of the earth. Earth goes around the sun once one year for every 365 1 4 times it turns around one day.

Earth s internal heat budget is fundamental to the thermal history of the earth. Earth s gravity interacts with other objects in space especially the sun and the moon which is earth s only natural satellite earth orbits around the sun in about 365 25 days.