TEXTBOOK ANSWERS AND SOLUTIONS OF CBSE CLASS IX SCIENCE Chapter 13 Why do we fall ill

2) A
doctor/nurse/health- worker is exposed to more sick people than others in the
community. Find out how she/ he avoids getting sick herself/ himself.
ANSWER:-The following precautions must be taken by a doctor/ nurse/ health-worker:
a)Ensuring proper cleanliness
and personal hygiene.
b)Eating healthy and nutritious food.
c) Wearing a mask when in contact with a diseased person.
d) Keeping yourself covered while moving around an infected place.
3) A baby is not able to
tell her/his caretakers that she/he is sick. What would help us to find out?
(a) That the baby is
sick?
(b) What is the
sickness?
ANSWER:-(a) The baby is sick can be determined by his/her behavioral
changes such as constant crying of baby, improper intake of food, frequent mood
changes, etc.
(b) The sickness is determined by symptoms or indications that can
be seen in the baby. The symptoms include vomiting, fever, loose motion,
paleness in the body, etc.
5) Under which of the
following conditions is a person most likely to fall sick?
(a) When she is
recovering from malaria.
(b) When she has
recovered from malaria and is taking care of someone suffering from
chicken-pox.
(c) When she is on a
four-day fast after recovering from malaria and is taking care of someone
suffering from chicken-pox.


ANSWER:-(c)A person is more likely to fall sick when she is on a four day
fast after recovering from malaria and is taking care of someone who is
suffering from
chicken
pox.
6) Under which of the
following conditions are you most likely to fall sick?
(a) When you are taking
examinations.
(b) When you have
travelled by bus and train for two days.
(c) When your friend is
suffering from measles. Why?
ANSWER 🙁 c) You are more likely to fall sick when your friend is
suffering from measles. This is because measles is highly contagious
and can easily spread through respiration