State True (T) or False (F) for the following statements. a. Anaerobic digestion of activated sludge produces biogas inside the sludge digester. b. Rhizobium is used as a biofertilizer for raising production of soyabean crop. c.Organic farming uses only naturally produced inputs like compost.

Read the following statements about activated sludge. a. It is the effluent passed from anaerobic digester to the settling tank. b. A small part of activated sludge is pumped into large tanks called anaerobic sludge digesters. c. A small part of activated sludge is pumped back Into the aeration tank to serve as inoculum. Which of the above statements are incorrect?

Give the correct order of initials T(true) or F(false) for following statements. (a) Micelles formation takes place only above craft temperature (b)ZSM-5 is a type of zeolites used as a catalyst in petrochemical industries. (c)A micell is an aggregation of surfactants in in aqueous solution, often spherical (d) Lyophilic sols are irreversible sols

Read the following statements and mark them as True (T) or False (F) A. Plants can assimilate ammonium ions only, B.Rhizobium is an obligate anaerobe, C. In legumes, nodule is formed by inner cortex and pericycle cells.

Read the following statements and select the true ((T)) or false ((F)) statement . A. The notochord is an ectodermal derived rod-like structure in chordates. B. Platyhelminthes are triploblastic and pseudocoelomate animals. C. The alternation of generation in Obelia is called Metagenesis . D. In ctenophora , only sexual mode of reproduction is observed.