Question

what is Source? ND it's types

Answer 1

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Answer 2

Source: A body or process by which energy or a particular component enters a system.

There are three types of source Primary Secondary Tertiary.

Primary and Secondary Sourcesfor Science. In the Sciences, primary sources are documents that provide full description of the original research. For example, a primary source would be a journal article where scientists describe their research on the human immune system.
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