Consumption efficiency is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level which of the following are correct statement ?

A.Consumption efficiencies higher in  forests than grassland

B-In aquatic ecosystems consuption efficiencies of hervivore are greater than terrestrial hervivore

C- Consumption efficiencies for carnivores are typically higher than those of herbivores

D-Primary production consumption is increased where it is high in nutrients such as nitrogen and phosphorus

TLS Online TPP Program

#Question id: 26700

#Unit 13. Advances in Biotechnology

To enhance biodegradation process efficiently it is required to vary the design and operation of activated sludge system. Which of the following variations in design and operation of this system is NOT correct?

TLS Online TPP Program

#Question id: 21659

#Unit 13. Advances in Biotechnology

5thjune is observed as

TLS Online TPP Program

#Question id: 22629

#Unit 13. Advances in Biotechnology

During primary sedimentation and biological treatment of waste water, vast quantities of sludge are generated which are assessed by sludge volume index (SVI), defined as the volume occupied by 1 g of sludge after settling for 30 min in a 1L Imoff cone which measures the

TLS Online TPP Program

#Question id: 22667

#Unit 13. Advances in Biotechnology

Ballast water is a serious issue due to possibility of

TLS Online TPP Program

#Question id: 20769

#Unit 13. Advances in Biotechnology

A wastewater sample has COD of 1 g/L of which 80% is the BOD. During partial aerobic oxidation only 200 mg of COD was converted to CO2 and H2O. The remaining BOD (mg/L) is:

TLS Online TPP Program

#Question id: 20773

#Unit 13. Advances in Biotechnology

A bioremediation mesocosm experiment has been carried out on a plot with 250 ppm aromatic molecules as contaminants. After 15 days the level of aromatic molecules came down to 100 ppm at a temperature of 48 ± 2°C. The electrical conductance of this site has increased over time because of the