Answer:
Visible light from the Sun
Explanation:
The visible light is known to be a portion of the electromagnetic spectrum that can be seen with naked eyes. It is a form of electromagnetic radiation.
Other forms of the electromagnetic radiation are the infrared and ultraviolet.
The visible light is found or falls within the range of electromagnetic radiation spectrum between the infrared and ultraviolet.
Among the electromagnetic radiation, the visible light is the portion that supplies the energy which warms the earth's surface.
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Answer: It is the result of a mixture of radiation from many independent sources, such as stars and galaxies.
Microwave background radiation is a form of electromagnetic radiation that is present in the whole universe and completely fills it. In fact, it is the leftover radiation from the Big Bang that occurred 400,000 years before the events related to this cosmic radiation.
Its frequency belongs to the microwaves range and is one of the main demonstrations of the of the Big Bang theory model.
