Answer: Social Forces
Explanation:A social force is a force that result from unified opinion from the members of the community or society that bring about a social action that will lead to a social change . Social forces drive and motivate crucial changes within society.
The community came together against the supermarket and their unified opinion was able to influence the supermarket to change to using biodegradable plastics. There is power in numbers and this is what this community clearly used to stand for what they want and eliminate what they don't want;unified voice.