What is the group of bacteria found in both the rumen of cattle and sludge of sewage treatment?

Which bacteria is commonly found in the anacrobic sludge during sewage treatment?

In biogas plant which group of bacteria is found

What is the key difference between primary and secondary sewage treatment?

What is activated sludge in a sewage treatment tank? How this activated sludge is used?

B) Mention the beneficial role of anaerobic bacteria in secondary sewage treatment.

(a) Draw a neat labelled diagram of typical biogas plant. (b) Mention the beneficial role of anaerobic bacteria in secondary sewage treatment.

Aminoacids, as the name suggests, have both an amino group and a carboxyl group in their structure. In addition, all naturally occurring aminoacids (those which are found in proteins) are called L-aminoacids. From this, can you guess from which compound can the simplest aminoacid be made

Mother and father of a person with 'O' blood group have 'A' and 'B' blood group respectively. What would be the genotype of both mother and father?

It is said that elemental composition of living organisms and that of inanimate objects (like earth's crust ) are similar in the sense that all the major elements are present in both. Then what would be the difference between these two groups ? Choose a correct answer from the following.

i] An element X has both K and L shells completely filled with electrons. The element has atomic number 10. Identify the element X. ii] In which group of the periodic table this element is placed? iii) Write its electronic configuration. What is its valency?.