Class-5 EVS Chapter-8 A Treat for Mosquitoes, Additional exercises with solutions / NCERT
Chapter-8
A Treat for
Mosquitoes
Choose
the correct option:
1. Which of
these diseases are caused by mosquitoes:
a. Dengue
b. Malaria
c. Chikungunya
d. All the
above
2. Which of
the following is done to protect one from mosquitoes:
a. Wire mesh
on windows
b. Removing
stagnant water
c. Keeping
surroundings clean
d. All the
above
3. What is the
normal range of haemoglobin in human body:
a. 6-8 gm/dl
b. 8-10 gm/dl
c. 12-16 gm/dl
d. None of
these
4. Which of
these disease is spread by flies:
a. Malaria
b. Cholera
c. Dengue
d. Chikungunya
5. Condition
of less haemoglobin/iron in the blood is called:
a. Anaemia
b. Night blindness
c. Polio
d. Fever
State whether following statements are True or False:
1- Anaemia
affects both physical and mental health. True
2- Doctor
suggested Aarti to eat jaggery, amla and more green leafy vegetables to recover
from anaemia. True
3- Malaria can
not be diagnosed with blood test. False
4- Fever with
chills and rigors is a symptom of malaria. True
5- Ronald Ross
was awarded Noble prize for discovering dengue mosquito. False
Fill in the blanks with suitable words:
(germs,
physical, mental, anopheles, cinchona, iron, algae, stagnant)
1. Algae are some
king of small plants that grow in water.
2. Flies carry
germs from one place to another.
3. Stagnant water is
the breeding ground for mosquitoes.
4. Green leafy
vegetables like lettuce contain iron.
5. Anaemia
affects both physical as well as mental health.
6. Medicine
for malaria is made from the bark of cinchona tree.
7. Malaria
spreads through female anopheles mosquitoes.
Click here for Grade-6 Science
Answer these questions:
Q. In which season is malaria more
common? Why do you think this happens?
Ans- Malaria is more common at the
end of rainy season or soon after it because of stagnant water at various
palces.
Q. List various ways to protect
yourself from malaria?
Ans- Following are some ways to
protect ourselves from malaria:
1- Wire mesh
on windows
2- Mosquito
nets
3- Mosquito
coils
4- Liquid
mosquito repellents
5- Mosquito
repellent creams/lotions
6- Wearing
mosquito repellent bands
7- Removing
stagnant water
8- Keeping surroundings clean
Q. How is medicine for malaria
made?
Ans- Medicine for malaria is made
from the powdered bark of cinchona tree.
Q. Name some foods that increase
iron in your diet.
Ans- Some foods that increase iron
in our diet are jaggery, amla and green leafy vegetables.
Q. What is anaemia?
Ans- Ananemia is the condition of
less haemoglobin or iron in the blood.
Q. What are the problems caused by
anaemia?
Ans- Following problems are caused by anaemia:
1- It affects
physical as well as mental health.
2- Children do
not grow properly.
3- Energy
level is down.
Q. How does cleaning tank, cooler
and pits prevent malaria?
Ans- Cleaning of tank, cooler and
pits prevent malaria because these places have stagnant water which becomes the
breeding ground for mosquitoes.
Q. Which diseases are spread by
flies and how?
Ans- Diseases like typhoid,
cholera, dysentery, anthrax, tuberculosis and salmonella are spread by flies.
Flies carry pathogens on their legs
and hairs covering their body and transfer them to food or touched surface.
Q. Who is supposed to get the
gutters and drains repaired?
Ans- Municipality (Nagar Nigam) is
supposed to get the gutters and drains repaired.
Q. What can you do so that
mosquitoes do not breed in your house, school and neighbourhood?
Ans. We should remove the stagnant
water and keep the surroundings clean to prevent so that mosquitoes do not
breed in our house, school and neighbourhood.
Q. How can you find out if someone
has malaria?
Ans. Following are two ways to find
if someone has malaria:
1- Fever with
chills and rigors
2- Blood test
http://textbooksupport-ncert.blogspot.com/p/blog-page_20.html
http://textbooksupport-ncert.blogspot.com/p/blog-page_20.html
Comments
Post a Comment