What is runoff and how is it important to surface water reservoirs?

Answer 1

Runoff is the draining away of water from the surface of an area of land when the rain hits the surface.

It can carry pollutants along its path and contaminate the water when it gets to the water reservoirs. In particular, if runoff carries materials containing phosphorus to a lake, this can lead to algal growth and a problem with eutrophication.

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Answer 2

Eleanor Apodaca

Runoff is the flow of water over the land surface. It is important to surface water reservoirs as it contributes to the replenishment of these reservoirs, helping maintain water levels and supporting ecosystems. Additionally, runoff can transport pollutants to reservoirs, impacting water quality.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.