(a) It is caused by the bite of Anopheles mosquito, Its cure

is quinine.

(b) It is caused by tentanns bacillus which grows only in

the absence of oxygen. The germ enters the skin through a

cut or wound and causes infection. The cure is anti-tentanus

injection

(c) It is caused due to lack if vitamin C. The cure is the

juices of tomatoes, lemons, oranges etc..