Final answer:
A petition is a written or spoken document that expresses a request or demand to an authority. It is used to gather support and advocate for change.
Step-by-step explanation:
A petition is a written or spoken document that presents a request or demand to an authority. It is used to express a collective opinion or gather support for a cause. Petitions can be found in various fields such as politics, social activism, and even online platforms. They serve as a way for individuals or groups to advocate for change or express concerns.
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