Which of the following species in water reveal the presence of fecal pollution of human or animal origin? All of these Fecal Streptococci E.coli Clostridium perfringens TRUE ANSWER : ? YOUR ANSWER : ?
All of the following species are considered coliforms except Klebsiella pneumoniae Enterobacter aerogenes Salmonella typhi Escherichia coli TRUE ANSWER : ? YOUR ANSWER : ?
Metabolism of dissolved organic material released by phytoplankton allows heterotrophic bacteria to become part of the particulate organic matter that is passed up the food web to be metabolized and released as mineral elements and CO2 at each transfer. This sentence describes the microbial loop Winogradsky column Redfield ratio Gibbs free energy TRUE ANSWER : ? YOUR ANSWER : ?
Removal of solids is generally considered as a Tertiary treatment Secondary treatment None of these Primary treatment TRUE ANSWER : ? YOUR ANSWER : ?
The amount of oxygen dissolved in hypolimnion water in the winter is __________ to/than the amount of oxygen dissolved in hypolimnion water in the summer greater approximately equal to half lesser TRUE ANSWER : ? YOUR ANSWER : ?
The sulfur pearl of Namibia, Thiomargarita namibiensis stores high concentrations of nitrate in a huge internal vacuole which takes up 98% of the organisms volume is the worlds largest bacterium is the worlds smallest bacterium Both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
The Redfield ratio is an index of concentration of carbon, phosphorous and sulfur carbon, hydrogen and oxygen carbon, nitrogen and phosphorous nitrogen, potassium and iron TRUE ANSWER : ? YOUR ANSWER : ?
Trickling filter comes under secondary treatment primary treatment none of these tertiary treatment TRUE ANSWER : ? YOUR ANSWER : ?
Activated sludge undergoes Secondary treatment Tertiary treatment Primary treatment any of these TRUE ANSWER : ? YOUR ANSWER : ?
Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except Escherichia Chlorobium Clostridium Rhodospirillum TRUE ANSWER : ? YOUR ANSWER : ?