Webb20 nov. 2024 · The scientific explanation for the creation of the Earth is that it was formed through a process called accretion. Accretion is the gradual accumulation of matter, and it is thought that the Earth was formed through the accretion of dust and gas that was present in the solar system. Webb8 okt. 2009 · The oceans are mostly composed of warm salty water near the surface over cold, less salty water in the ocean depths. These two regions don't mix except in certain special areas. The ocean currents, the movement of the ocean in the surface layer, are driven mostly by the wind. In certain areas near the polar oceans, the colder surface …
How did Earth get its water? Scientists think they
WebbEarth was formed approximately 4.6 billion years ago, likely as the result of a supernova (star explosion). The debris from this explosion began to collapse in on itself due to … WebbAs the amount of data on the planets, moons, comets, and asteroids has grown, so too have the problems faced by astronomers in forming theories of the origin of the solar … did napoleon win the peninsular war
Earth
WebbIt was long thought that Earth’s water did not originate from the planet’s region of the protoplanetary disk. Instead, it was hypothesized water and other volatiles must have been delivered to Earth from the outer Solar System later in its history. Webb30 okt. 2012 · This new hypothesis about how Earth’s moon formed is challenging the commonly believed “giant impact hypothesis,” which suggests that Earth's moon formed from a colossal impact of a … WebbEarth’s atmosphere today bears little resemblance to the atmosphere of the early Earth, in which life developed; it has been nearly reconstituted by the bacteria, vegetation, and other life forms that have acted upon it over the eons. didnapper athena