An environmental group works to pass legislation that would decrease air pollution.But an individual would probably not contribute to that group,especially if he or she could enjoy the benefits of breathing clean air without participating in the group's campaign.This is an example of the __________ problem.

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The Answer of An environmental group works to pass legislation that would decrease air pollution.But an individual would probably not contribute to that group,especially if he or she could enjoy the benefits of breathing clean air without participating in the group's campaign.This is an example of the __________ problem.

An Environmental Group Works to Pass Legislation That Would Decrease