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प्रश्न
List any three effective methods for controlling mosquitoes.
उत्तर १
Effective methods for controlling mosquitoes:
(i) Spraying insecticides
(ii) Food should be protected by covering it
(iii) Eliminating breeding places of mosquitoes
उत्तर २
Three ways of controlling mosquitoes are:
(i) Mosquitoes can be controlled by spraying liquid insecticides like flit or D.D.T.
(ii) The breeding places of mosquitoes are sprayed with petroleum oils. The oil-film formed on the surface of water is toxic to the mosquito larvae.
(iii) Mosquito-repellents like mosquito cream, citronella, odomos and indalone help to keep mosquitoes away and protect us from getting bitten.
संबंधित प्रश्न
Put a tick mark (✓) against the correct alternative in the following statement:
A mosquito is a vector for :
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following vitamin deficiency diseases can be cured by eating a diet which includes carrot, yellow fruits, vegetables, butter, milk, fish ?
- Beri-beri
- Dermatitis
- Night blindness
- Scurvy
How can we control spreading of diseases by mosquitoes and houseflies ?
Which of the following statement are true (T) and which ones are false (F)? Mark T or F:
Malaria is a vector-borne disease.
Write a brief account on the following disease:
Malaria
What measure would you take to prevent water-borne diseases?
The stages of the malarial parasite are developed in the ______ of mosquito.
The incubation period of the virus for chikungunya is usually ______.
The disease that displays Nocturnal periodicity ______.
Nilavembu kudineer is known to increase ______.
Filaria is transmitted by the bite of an infected Culex mosquito.
Malaria is caused by the fungal parasite plasmodium.
Assertion: Chikungunya is transmitted in humans by the bite of an infected Aedes aegypti mosquito during the daytime.
Reason: Chikungunya is caused by Rotavirus.
Define the following:
Vector
Name two diseases transmitted by the Aedes aegypti mosquito?
Sanjay had an attack of chickenpox and has just recovered. The health officer of his locality says that the disease would not occur again. What would be the reason for this?
How is typhoid prevented and treated?
Name the causative agent of typhoid in humans. How does the pathogen gain entry into the human body? Write the diagnostic symptoms and mention the organ that is affected in severe cases.
Observe the following set of symptoms given below:
- Frontal headache
- Liver enlargement
- Bleeding gums
- Excessive pain in the body
- Pain behind the eyes
- Rupture of veins in kidneys
To which of the following type of diseases do these symptoms belong?
