Exercise class 8 science chapter 2 healthand diseases| Exercise std 8 Sci ch 2 question answer
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Exercises
1. Distinguish between- Infectious and non-
infectious diseases.
2. Identify the odd term.
a. Malaria, hepatitis, elephantiasis, dengue.
b. Plague, AIDS, cholera, T.B.
3. Answer in one to two sentences.
a. Which are various media of spreading
the infectious diseases?
b. Give the names of five non-infectious
diseases other than given in the lesson.
c. Which are the main reasons of diabetes
and heart diseases?
4. What can be achieved/can be prevented?
a. Drinking boiled and filtered water.
b. Avoiding smoking and alcoholism.
c. Regular balanced diet and exercise.
d. Proper checking of blood before blood
donation.
5. Read the passage and answer the
questions.
Master 'X' is a 3 year old child. He is
living with his family in a slum. Public
toilet is present near his house. His father
is drunkard. His mother does not know the
importance of balanced diet.
a. Master 'X' can suffer from which
different possible diseases in above
conditions?
b. How will you help him and his family in
this situation?
c. Which disease can occur to the father of
master 'X'?
6. Give the preventive measures of
following diseases.
a. Dengue. b. Cancer.
c. AIDS.
7. Explain the importance.
a. Balanced diet.
b. Physical exercise / Yogasanas.
8. Make a list.
a. Viral diseases.
b. Bacterial diseases.
c. Diseases spread through insects.
d. Hereditary diseases.
9. Write the information on modern
diagnostics and treatments of cancer.
10. Enlist the names and composition of the
medicines present at your home.
Project:
1. Prepare posters giving information about
various diseases, public awareness and
arrange exhibition in school.
2. Visit the public health center / clinic
nearby and collect the information about
vaccination.
3. Compose a street-play to increase public
awareness about dengue, malaria, swine
flu and present it in the area nearby your
school.
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