The atmospheric conditions have been significantly altered from the original conditions by the presence of life-forms, which create an ecological balance that stabilizes the surface conditions.
There are no formal educational or licensure requirements to become a web developer. However, many colleges and trade schools offer coursework in web development. There are also many tutorials and articles, which teach web development, freely available on the web
Nature, in the broadest sense, is equivalent to the natural world, physical world, or material world. "Nature" refers to the phenomena of the physical world, and also to life in general