Why are pollution cleanup efforts ineffective? 

A)  they often transfer pollutants from one part of the environment to another 
B)  we lack technology to clean up most pollution 
C)  too much effort and funding is focused on pollution prevention 
D)  because efforts are only effective with nonpoint sources, not point sources

Pollution cleanup efforts often involve methods like dredging, which can transfer pollutants from one area to another. This means that even if the original pollution source is removed or reduced, it may still be present in another part of the environment. Additionally, some forms of pollution are difficult or impossible to clean up, such as plastic pollution or mercury contamination in waterways. While pollution prevention is important, it is also crucial to improve the effectiveness of cleanup efforts to address existing pollution.