When conducting research to find out how pollution is affecting the number of ducks in a pond, which of the following would MOST likely be the independent variable in the study?

(1 point)
Responses

pollution because it is affected by other variables

pollution because it is affected by other variables

pollution because it is NOT affected by other variables

pollution because it is NOT affected by other variables

number of ducks because it is affected by other variables

number of ducks because it is affected by other variables

number of ducks because it is NOT affected by other variables

pollution because it is affected by other variables