Final answer:
Petitioning is the act of gathering signatures to show support for changing an existing law or creating a new law.
Step-by-step explanation:
The act of gathering signatures to show support for changing an existing law or creating a new law is called petitioning. Petitioning is a common method used by citizens to express their opinions and advocate for legislative change. It involves collecting signatures from individuals who support a particular cause or issue, which can then be presented to lawmakers or other relevant authorities.
Learn more about petitioning