(a) (i) List two diseases each of plants and animals caused by bacteria. (ii) State three ways in which bacteria are useful. (b) State three methods by whic...

(a) (i) List two diseases each of plants and animals caused by bacteria.
(ii) State three ways in which bacteria are useful.

(b) State three methods by which mosquitoes can be controlled and state the reason for each method

(c) Describe an experiment to demostrate the presence of bacteria under the finger nails