हिंदी

The Chemical Substance Mainly Responsible for Tooth Disorders is - Biology

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प्रश्न

The chemical substance mainly responsible for tooth disorders is 

विकल्प

  • Calcium

  •  Chloride 

  • Fluorides 

  •  Iodides 

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उत्तर

 Fluorides

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Vector Borne Diseases
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 15: Hygiene - [A Key to Healthy Life] - Multiple choice type [पृष्ठ १५५]

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सेलिना Concise Biology [English] Class 9 ICSE
अध्याय 15 Hygiene - [A Key to Healthy Life]
Multiple choice type | Q 4 | पृष्ठ १५५

संबंधित प्रश्न

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 ?

  1. Beri-beri
  2. Dermatitis
  3. Night blindness
  4. Scurvy  

Public hygiene is equally important as personal hygiene. Give reasons. 


A viral disease caused due to unhealthy sexual contact..................


Name few vectors and diseases caused by them. 

 


List any three effective methods for controlling mosquitoes.


Match Column I with that Which is Most Appropriate in Column II.

Column I Column II
(a) Mosquito (i) DDT
(b) Plasmodium (ii) Dengue
(c) Entamoeba histolytica (iii) Vector
(d) Aedes mosquito (iv) Malaria
(e) Insecticide  (v) Dysentery

Amoebiasis is caused by the protozoan:


Write a brief account on the following disease:
Malaria


Fill in the blank:
The causative agent of malaria is a _______.


Name the vector of the malarial parasite. Mention the species of malarial parasite which cause malignant and fatal malaria.


Name the Causative Agents and write the Symptoms for Dengue Fever and Sine Flu.


How is Dengue fever spread? What are the symptoms?


The use of ______ drugs kills the stages of the malaria parasite.


Why is dengue also known as break-bone fever?


We are advised to take bland and nutritious food when we are sick. What is the reason?


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:

  1. Frontal headache
  2. Liver enlargement
  3. Bleeding gums
  4. Excessive pain in the body
  5. Pain behind the eyes
  6. Rupture of veins in kidneys

To which of the following type of diseases do these symptoms belong?


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