Final answer:
Mass media includes various public forms of communication, while a tool is something used to achieve a goal, and collaborating means working together with others.
Step-by-step explanation:
The key term that best matches the definition of 'All public forms of communication, such as TV, radio, newspaper, the Internet, and advertisements' is mass media. Mass media includes television, print, radio, and Internet, and it is the collection of all forms of media that communicate information to the general public.
The key term that best matches the definition of 'Something that you can use to help achieve a goal' is tool. A tool is something that can be utilized to assist in achieving a specific objective or goal.
The key term that best matches the definition of 'To work together with one or more people' is collaborate. Collaborating means working together with others to achieve a common goal or complete a task.