Class 9 Health and Hygiene Mock Test (ICSE)

Topics in Health and Hygiene

• Personal hygiene
• Community hygiene
• Water purification and sewage disposal
• Vectors and their control

Health and Hygiene practice questions with answers

1. Q1Multiple choice·1 mark
   Which of the following diseases is mechanically transmitted by the housefly?

   1. (a)Malaria
   2. (b)Typhoid
   3. (c)Dengue
   4. (d)Rabies
   Show answer and step marks

   1. Correct option: (b) Typhoid+1

   Answer: (b)
2. Q2Multiple choice·1 mark
   Proper disposal of garbage, maintenance of clean public streets, and safe sewage disposal are the main objectives of:

   1. (a)Community hygiene
   2. (b)First aid
   3. (c)Immunization
   4. (d)Personal hygiene
   Show answer and step marks

   1. Correct option: (a) Community hygiene+1

   Answer: (a)
3. Q3Multiple choice·1 mark
   Maintaining personal hygiene primarily helps an individual in:

   1. (a)Preventing inherited disorders such as colour blindness
   2. (b)Curing infections that have already set in the body
   3. (c)Protecting oneself from germs and infectious diseases
   4. (d)Curing deficiency diseases such as scurvy and rickets
   Show answer and step marks

   1. Correct option: (c) Protecting oneself from germs and infectious diseases. Hygiene keeps germs away; it cannot prevent inherited disorders or cure infections and deficiency diseases.+1

   Answer: (c)
4. Q4Multiple choice·1 mark
   The process of adding alum to water in a purification plant to make suspended impurities settle down quickly is known as:

   1. (a)Loading
   2. (b)Aeration
   3. (c)Chlorination
   4. (d)Distillation
   Show answer and step marks

   1. Correct option: (a) Loading+1

   Answer: (a)
5. Q5Long answer·4 marks
   (a) Name the specific vectors responsible for transmitting malaria and dengue respectively. [1] (b) Mention one biological method used to control the breeding of mosquitoes. [1] (c) State any two preventive measures to check mosquito breeding in domestic surroundings. [2]
   Show answer and step marks

   1. (a) Malaria vector: female Anopheles mosquito.+0.5
   2. (a) Dengue vector: Aedes mosquito (Aedes aegypti).+0.5
   3. (b) Any one of: releasing larva-eating fish such as Gambusia or guppies into ponds and stagnant water; spraying the bacterium Bacillus thuringiensis (Bti), which kills larvae; or any other valid biological (living-organism) control.+1
   4. (c) First measure, any one of: not letting water stagnate in coolers, flower pots, tyres and discarded containers; covering overhead tanks and water containers; changing cooler and vase water every week; spreading a thin film of kerosene oil on stagnant water; filling up puddles and keeping drains clean; or any other valid measure.+1
   5. (c) Second measure, a different one from the same list.+1

   Answer: (a) Malaria: female Anopheles; dengue: Aedes. (b) Gambusia (or guppy) fish that eat larvae, or Bti spray. (c) Any two of: no stagnant water in coolers, pots and tyres; covering tanks; changing cooler water weekly; kerosene film on stagnant water; filling puddles and cleaning drains.

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