A. Methano bacteria 

B. Nitrifying bacteria 

C. Pseudomonas 

D. None of these

A. Acropetal succession

B. Basipetal succession

C. Longitudinal manner

D. Irregular manner

A. Murcurious    

B. Sulphur

C. Copper                 

D. Miscellaneous

A. acute angles

B. obtuse angle

C. sparsly branched

D. right angles

A. Monotrichous         

B. Lophotrichous

C. Amphitrichous             

D. Peritrichous

A. Because causal organism do not belong to rust family

B. The colour of pustule is not brown

C. The disease occurs in members of family cruciferae

D. The disease has not been observed on wheat

A. Chytridiomycetes             

B. Hypochytridiomycetes

C. Both (a) & (b)

D. None of these

A. Boron        

B. Zinc

C. Iron 

D. Oxygen

A. Cogugation

B. Autoaecium

C. Heterothalism

D. Diplanatism

A. Zygospore

B. Zoospore

C. Conidia

D. Chlamydospore