Which convert complex proteins in the dead bodies of plants and animals into ammonia, nitrites and nitrates?

Name an ammonifying bacteria

Name two micro organisms which are used to make antibiotics.

Name the activity by which the leaves of tea, tobacco etc are fermented.

Name the species of bacteria which is used to manufacture the antibiotic, 'streptomycin'?
 

Name the species of bacteria which cause the disease 'citrus canker'

Nodules are responsible for nitrogen fixation.  Name the bacteria present inside the root nodules.

Name a nitrogen-fixing bacteria

Name the micro organisms which spread disease.

Name the cariers of disease organisms.