Oxygen demanding wastes improves DO.

Dilution=volume added/total volume. What does total volume indicate?

The degradation of BOD is classified as what type of reaction?

The impact of pollution depends upon nature of the pollutants and the _______

_______ is an improved sinkhole or a subsurface fluid distribution system.

When the deoxygenation rate exceeds the reoxygenation rate, the oxygen sag curve shows ____ in a deficit of oxygen.

In the concept of self purification of natural streams, complete the following phrase. Solution to pollution is _____

______ tend to resist conventional methods of wastewater treatment.