All of the following species are considered coliforms except Salmonella typhi Escherichia coli Enterobacter aerogenes Klebsiella pneumoniae TRUE ANSWER : ? YOUR ANSWER : ?
Coliforms are used as indicator organisms because None of these both (a) and (b) a testing procedure with great specificity is easy to perform they are present wherever enteric pathogens are present TRUE ANSWER : ? YOUR ANSWER : ?
The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water. approximately equal greater half lesser TRUE ANSWER : ? YOUR ANSWER : ?
Removal of solids is generally considered as a Secondary treatment Primary treatment None of these Tertiary treatment TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following species in water reveal the presence of fecal pollution of human or animal origin? E.coli Fecal Streptococci Clostridium perfringens All of these TRUE ANSWER : ? YOUR ANSWER : ?
Chemical precipitation of phosphorus is tertiary treatment primary treatment both (a) and (b) secondary treatment TRUE ANSWER : ? YOUR ANSWER : ?
Hyphomycete fungi None of these both (a) and (b) grow in leaves and the infected leaves are the preferred food source for some aquatic insects produce nonmotile tetaradiate conidia TRUE ANSWER : ? YOUR ANSWER : ?
Activated sludge undergoes any of these Tertiary treatment Primary treatment Secondary treatment 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 smallest bacterium Both (a) and (b) is the worlds largest bacterium 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 Winogradsky column Redfield ratio Gibbs free energy microbial loop TRUE ANSWER : ? YOUR ANSWER : ?