Respuestas
Respuesta:The origin of the Earth is the same as that of the solar system. What would eventually become the solar system existed, initially, as an extensive mix of rotating clouds of gas, rocks, and dust. It was made up of hydrogen and helium that emerged in the Big Bang, as well as heavier elements produced by supernovae. About 4.6 billion years ago, a nearby star went supernova and its explosion sent a shock wave into the protosolar nebula, increasing its angular momentum. As the nebula began to increase in rotation, gravity, and inertia, it flattened into a protoplanetary disk (oriented perpendicular to the axis of rotation). Most of the mass accumulated at its center and began to heat up, but due to small disturbances in angular momentum and collisions from the numerous debris generated, protoplanets began to form. It increased its spin speed and gravity, originating an enormous kinetic energy in the center. The inability to transmit this energy to any other process caused the center of the disk to increase in temperature. Finally, nuclear fusion began, from hydrogen to helium, and finally, after its contraction, it transformed into a T Tauri star: the Sun. The gravity produced by the condensation of matter - which had previously been captured by the gravity from the Sun itself - caused the dust particles and the rest of the protoplanetary disk to begin to segment into rings. The larger fragments collided with others, forming larger ones that would eventually form protoplanets. Within this group was one located approximately 150 million kilometers from the center: Earth. The solar wind from the newly formed star carried most of the particles in the disk, condensing them into larger bodies.
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