Web18 de set. de 2024 · A: Planets and their atmospheres come from the same material as their parent star, which forms from a nebula of dust and gas. After the new sun ignites, … WebAs the early Earth cooled, the water vapor in the atmosphere condensed and fell as rain. By about 4 billion years ago, the first permanent accumulations of water were present on Earth, forming the oceans and other bodies of water. Water moves between these different reservoirs through the hydrological cycle .

A brief history of the Earth

WebWhen the surface of Earth had cooled to below 100 °C (212 °F), the hot water vapour in the atmosphere would have condensed to form the early oceans. The existence of 3.5-billion-year-old stromatolites is, as noted above, evidence of the activity of blue-green algae, and this fact indicates that Earth’s surface must have cooled to below 100 ... WebWhen Earth formed 4.6 billion years ago from a hot mix of gases and solids, it had almost no atmosphere. The surface was molten. As Earth cooled, an atmosphere formed mainly … hifi offenburg

The Earliest Atmosphere - Smithsonian Institution

WebLife Science Resources. Early Life on Earth – Animal Origins. Depiction of one of Earth’s ocean communities, including the top predator Anomalocaris, during the Cambrian … WebOver time, after the magma ocean cooled enough to form a solid surface, Earth’s atmosphere was replenished by volcanic eruptions, as well as water and other gasses … WebPlanets emerge from the dense disk of gas and dust encircling young stars. Credit: NASA. The dust around a star is critical to forming celestial objects around it. Dust around stars contains elements such as carbon and iron … how far is australia from uae