In protozoal infection, the person faces serious …………..
a) hepatitis
b) bloody stool
c) gastrointestinal illness
d) none of these
……….. are common parasitic infection.
a) Guinea worm
b) pin worm
c) both a & b
d) amoebiasis
Parasitic infection cause…………….
a) ulcer
b) fever
c) vomiting
d) all of these
Drinking water with ……….minerals has serious effects on health.
a) Arsenic
b) fluoride
c) both a & b
d) Zinc
Fluorosis is a disease caused by drinking water with excess of ………….
a) fluorine
b) chlorine
c) iodine
d) bromine
Fluorosis damages the …………
a) bones
b) teeth
c) both a & b
d) skin
