An image of the Gull River watershed is shown here. Why might it be difficult to predict the effects of pollution or flooding on the residents within the watershed?

Question

Responses
A Flooding occurs during random times of year, so predictions are difficult to make.Flooding occurs during random times of year, so predictions are difficult to make.
B Pollution sources cannot be determined, therefore their effects cannot be measured.Pollution sources cannot be determined, therefore their effects cannot be measured.
C Humans migrate across the watershed, making the impacts from humans difficult to predict.Humans migrate across the watershed, making the impacts from humans difficult to predict.
D A large number of water sources feed into the watershed, resulting in impacts that are difficult to predict.

Answer 1

The best response to your question is:

D A large number of water sources feed into the watershed, resulting in impacts that are difficult to predict.

This is because the complexity and variability of multiple water sources can lead to unpredictable interactions and effects from both pollution and flooding, making it challenging to accurately predict their impacts on residents.