Understanding Recharge and Surface Water Interaction

What does the blue dye represent in the physical model?

• Contaminants

• Aquifers

• Groundwater

• Precipitation

How does the blue dye move through the model?

• It evaporates

• It moves both horizontally and vertically

• It moves vertically only

• It stays on the surface

What is non-point source pollution?

• Pollution that is easy to clean

• Pollution that only affects surface water

• Pollution spread over a large area

• Pollution from a single, identifiable source

Which of the following is an example of point source pollution?

• Rainwater runoff

• Pesticides in the air

• Oil spill from a tanker

• Fertilizers spread over a field

Why is it difficult to clean up residues left by contaminants?

• They leave a residue that is costly and often impossible to remove completely

• They are spread over a large area

• They are too deep underground

• They are not harmful