Chhattisgarh State Board Class 8 Science Chapter 16 Some Common Diseases Exercise Multiple Choice, Fill in the Blanks, Questions and Answers here.
Fill in the blanks.
1.) To avoid dehydration a sick person must frequently take —- solutions.
Ans-ORS
2.) Female anopheles mosquito bite causes —– disease.
Ans-Malaria
3.) If a healthy child suddenly starts sneezing and there is watery discharge from his nose then he may be suffering from —– disease.
Ans-cold and fever
4.) A child has one of his legs swollen and fat the other one of normal size then he is suffering from —– disease
Ans- Elephantasis
5.) Lymph canals are affected by —– disease.
Ans-Elephantasis
6.) In — and — disease the central nervous system is affected.
Ans-
7.) After entering human body the HIV destroy the —- cells.
Ans –immunity power of the body or WBCs
Find which statements are correct and which are wrong. Correct the wrong statements.
1.) T. A. B. vaccine is against hybrid.
Ans- correct
2.) Tuberculosis is caused by vibrio cholery .
Ans- incorrect , TB is caused caused by bacteria
3.) To prevent mosquito bite , mosquito nets must be used.
Ans- correct
5.) Using the handkerchief and towels used by a person suffering from cold and flu, does not affect a healthy person.
Ans- incorrect , it is affected to the healthy persons.
6.) To prevent filarial mosquitoes must be destroyed.
Ans- correct but we can take prevention or protect ouself it is not necessary to kill mosquitoes.
7.) Rabies is caused by the bite of any dog or cat.
Ans- rabies is caused by the bite of any angry dog.
3.) Choose the correct alternatives.
1.) Disease caused by bactria and virus is-
a) Hereditary disease
b) Contagious disease.
c) Scurvy
d) Non- contagious disease.
Ans-b) contagious disease
2.) BCG is used against-
a) Polio
b) Tuberculosis
c) Typhoid
d) Malaria
Ans-b) tuberculosis
3.) Which is a bactria borne disease.
a) Chickenpox
b) Typhoid
c) Rabies
d) Influenza
Ans-b) typhoid
4.) Malaria is spread by-
a) Male culex mosquito
b) Male anaphelus mosquito
c) Female anophelus mosquito
d) Female culex mosquito
Ans-c)female anophelus mosquito
5.) Chill and shavering is a symptom of which disease-
a) Typhoid
b) Cholera
c) Malaria
d) Tuberculosis
Ans- c) malaria
6.) The disease caused by a protozoa is-
a) Dysentery
b) Malaria
c) Diarrhea
d) All of these.
Ans-d) all of these
7.) Dysentery is caused due to-
a) Drinking contaminated water
b) Eating too much
c) Drinking clean water
d) Eating salads
Ans- a) drinking contaminated water
4.) Answer the following questions.
1.) What are the measures taken prevention of tuberculosis?
Ans-prevention measures taken from tuberculosis-
a) Keep the sick person away from other family members in a clean ,comfortable room.
b) Do not use the articles used by a sick person.
c) Ask the sick person to cover his mouth while coughing with his hand or a cloth.
d) BCG is a very effective vaccacine for T.B.
e) This prevention take from T.B.
2.) What is dehydration? How can you treat it?
Ans- Dehydration means loss of fluid or water from our body due to prolonged passing of stools frequently
Give to that person water cold or boiled in more quantity
Give lemon juice to the person
Mix ORS powder in water and give to the person
All this things gives to the person when suffering from dehydration.
3.) If there are pits filled with water and mosquitoes breeding in it , near your house ,then what disease may infect you?
Ans- Filaria or filariasis disease
4.) Name two viral disease and their symptoms.
Ans- Cold and fever.
Symptoms-
a) frequent sneeze
b) Profuse watery discharge from nose or nose fow.
C ) Mild fever, head aches and body aches.
Chicken pox
Symptoms- a) diseases has slight or medium fever
b) uneasiness ,back pain and joint pain etc.
5.) Name a disease caused by a worm.
Ans- Roundworm
6.) Which disease are caused by files?
Ans- Malaria , dengue and filarial or filariasis.