Explain: BOD.

"BOD is commonly calcualted as an index of water pollution". Expand BOD.

Expand BOD and COD.

Explain : Duff

Explain GEAC.

Explain ECG.

Explain ETS.

Explain the following BOD?

Explain the process of secondary treatment given to the primary effluent upto the point it shows significant change in level of its BOD.

Explain with reference PCR Explain its role in molecular diagnosis.