Question

and answer the questions 3
Disease-producing micro-orgenisms: Pathogens may
be present in water bodies contaminated with sewage and dirt
from the surroundings, in food left uncovered in unhygienic
conditions with houseflies sitting on it, etc. If such contaminated
food or water is consumed, we may fall ill with diseases of the
alimentary canal, like amoebiasis, typhoid, cholera, hepatitis,
gastro, etc. Pathogens are released in the air when a person having
an infection of the respiratory tract sneezes or coughs. A healthy
person may get infected with such pathogens on breathing in the
same air and contract diseases like common cold, cough,
diphtheria, pneumonia tuberculosis, etc
Mosquitoes reproduce in places like heaps of garbage, drains,
stagnant water, etc. Microbes that cause diseases like malaria,
dengue, elephantiasis, yellow fever, chikungunya, Zika fever, etc
gain entry into the human body through the bite of a femal nosquito
Qus:-a) Which diseases are caused due to contaminatad
water and food? (Two names)
b) State the two names of diseases caused by respiration?
c) Which diseases are caused due to misquito bite?
(Two names​

Answer 1

a) Which diseases are caused due to contaminated water and food?

Answer: alimentary canal, amoebiasis diseases are caused due to contaminated water and food.

b) State the two names of diseases caused by respiration?

Answer: diphtheria, pneumonia of diseases caused by respiration.

c) Which diseases are caused due to mosquito bite?

Answer:  malaria, dengue diseases are caused due to mosquito bite.