Classify the following as positive or negative effects of ecosystem flooding.

Positive Negative
Pesticides and fertilizes enter the flood water from the surrounding area.
Positive – Pesticides and fertilizes enter the flood water from the surrounding area.
Negative – Pesticides and fertilizes enter the flood water from the surrounding area.
Flood waters contain silt and the soil becomes more fertile.

Positive - Flood waters contain silt and the soil becomes more fertile.