According to the World Health Organization (WHO), “health” means which of the following?
  • Absence of disease and disability only
  • A state of complete physical, mental and social well-being
  • Having a strong body and no pain
  • Being able to work for long hours every day
Which one of the following is a sign rather than a symptom?
  • Pain in the abdomen
  • Feeling tired all day
  • Fever (high body temperature)
  • Dizziness when standing up
Which of the following diseases is non-communicable?
  • Typhoid
  • Dengue
  • Diabetes
  • Chickenpox
What is the main function of a vaccine?
  • To kill all pathogens in the body immediately
  • To teach the immune system to recognise the germ
  • To replace antibiotics when the person falls ill
  • To give energy to the white blood cells
Which of the following preventive measures helps both communicable and non-communicable diseases?
  • Only vaccination campaigns
  • Only use of mosquito nets and repellents
  • Balanced diet, regular exercise, hygiene and a clean environment
  • Taking antibiotics regularly as a routine
In the context of disease spread, which statement is false?
  • Mosquito can act as a vector for malaria.
  • A non-communicable disease can spread from one person to another.
  • Contaminated water can transmit diseases like hepatitis A.
  • Pathogens include bacteria, viruses and protozoa.
Which scenario best illustrates acquired immunity?
  • Having a strong body because of good diet from childhood.
  • Developing protection after receiving a vaccine against measles.
  • Feeling energetic and fresh after good sleep.
  • Building muscle by lifting weights regularly.
Which of the following is not a typical risk factor for lifestyle-related non-communicable diseases?
  • Sedentary lifestyle (little exercise)
  • Unbalanced diet high in fats and sugars
  • Getting older in age
  • Catching a viral infection from a friend
If a student is experiencing frequent headaches, eyestrain, and poor sleep due to excessive screen time and social isolation, which dimension(s) of health are being affected?
  • Only physical health
  • Only social health
  • Only mental health
  • Physical, mental and social health all
Which pair is mismatched?
  • Protozoa – cause of malaria
  • Use of mosquito net – preventive for dengue
  • Antibiotics – effective against viral infections
  • Vaccination – helps build immunity before actual infection
A student scores well in academics, exercises regularly, and has no illness. However, after shifting to a new city, the student avoids interacting with classmates, feels lonely, and remains anxious most of the time. Which statement best describes the student's health?
  • The student is healthy because there is no disease.
  • The student is unhealthy because only mental health is affected.
  • The student is not completely healthy because health includes physical, mental, and social well-being.
  • The student is unhealthy only if physical illness develops.
Two classmates follow different daily routines. One exercises regularly but sleeps very little, while the other gets enough sleep but spends most of the day eating junk food and using a mobile phone. What can be concluded from these routines?
  • Following only one healthy habit is enough to remain healthy.
  • Health depends on maintaining several healthy habits together.
  • Sleep is more important than all other healthy habits.
  • Exercise alone can compensate for unhealthy eating habits.
Two playgrounds are located in different localities. One is clean and well maintained, while the other has stagnant water, garbage, flies, and mosquitoes. Besides being more pleasant to play in, why is the first playground a healthier choice?
  • It encourages children to exercise for longer hours.
  • It reduces the chances of exposure to unhygienic surroundings and disease-carrying organisms.
  • It always has cleaner drinking water available.
  • It prevents all communicable diseases.
A doctor notes that a patient has a body temperature of 39°C, while the patient complains of feeling weak and having body pain. Which observation is classified as a sign?
  • Feeling weak
  • Body pain
  • High body temperature
  • Tiredness
During a health awareness programme, students discuss why diseases spread differently. Which statement best distinguishes communicable diseases from non-communicable diseases?
  • Communicable diseases always affect only one organ, whereas non-communicable diseases affect many organs.
  • Communicable diseases are caused by pathogens and can spread from one person to another, whereas non-communicable diseases do not spread in this way.
  • Non-communicable diseases are always inherited, whereas communicable diseases are not.
  • Communicable diseases can only spread through air.
Four families are trying to reduce the risk of communicable diseases. Which family has addressed the greatest number of possible modes of disease transmission?
  • A family that drinks boiled water but ignores mosquito breeding around the house.
  • A family that uses mosquito nets but frequently shares towels with infected people.
  • A family that drinks safe water, maintains hygiene, covers coughs and sneezes, and prevents mosquito breeding.
  • A family that exercises daily and eats a balanced diet.
A school plans two health campaigns. One focuses on encouraging regular exercise, while the other promotes proper handwashing with soap. Which campaign is more directly aimed at reducing the spread of communicable diseases?
  • Encouraging regular exercise
  • Organising outdoor sports competitions
  • Promoting proper handwashing with soap
  • Advising students to sleep early
A child recovers from an infectious disease. Later, many classmates develop the same disease, but the child remains healthy. Which explanation best accounts for this observation?
  • The child has developed immunity against that disease.
  • The disease can no longer spread.
  • The child no longer comes in contact with pathogens.
  • The child's body permanently destroys all germs.
A person with a common viral illness insists on taking antibiotics without consulting a doctor. Why is this decision scientifically incorrect?
  • Antibiotics cure all infectious diseases only when taken early.
  • Antibiotics work against viruses but not bacteria.
  • Antibiotics work against bacterial infections, and unnecessary use can contribute to antibiotic resistance.
  • Antibiotics should be taken only after vaccination.
A student says that malaria and dengue spread in the same way because both are caused by mosquitoes. Which statement correctly explains the role of mosquitoes in these diseases?
  • Mosquitoes produce the pathogens that cause these diseases.
  • Mosquitoes act as vectors that carry disease-causing pathogens from one person to another.
  • Mosquitoes become sick after biting infected people.
  • Mosquitoes spread only viral diseases.
A health worker asks villagers to keep food covered, wash fruits before eating, and drink clean water. Which common route of disease transmission is being targeted through these measures?
  • Airborne transmission
  • Vector-borne transmission
  • Food- and water-borne transmission
  • Transmission through inherited genes
A child receives all the recommended vaccines according to the immunisation schedule. Months later, the child is exposed to one of the disease-causing organisms covered by the vaccine but does not develop the disease. What is the most appropriate explanation?
  • Vaccines destroy all pathogens before they enter the body.
  • Vaccination prepares the immune system to recognise and fight specific pathogens.
  • Vaccines permanently prevent all infectious diseases.
  • Vaccines replace the body's natural defence system.
A science exhibition displays the contribution of Edward Jenner. Which achievement should be highlighted in the exhibit?
  • Discovery of antibiotics
  • Development of the first successful vaccine against smallpox
  • Identification of bacteria under a microscope
  • Discovery of blood groups
A doctor explains that two patients have infections. One is caused by bacteria and the other by viruses. Why would antibiotics be prescribed for only one of them?
  • Antibiotics work against bacterial infections but are ineffective against viruses.
  • Antibiotics are useful only for severe diseases.
  • Viral infections never require medical care.
  • Antibiotics strengthen the body against every type of pathogen.
A patient stops taking prescribed antibiotics as soon as the symptoms improve. After a few weeks, the infection returns and is harder to treat. Which conclusion best explains this situation?
  • The bacteria may have survived and developed resistance because the antibiotic course was not completed.
  • Antibiotics lose their strength after a few days.
  • The disease changed from bacterial to viral.
  • The patient's immune system stopped working.
A doctor advises one patient to improve eating habits, exercise regularly, and reduce stress instead of prescribing medicines immediately. Which type of disease is the doctor most likely trying to prevent or manage?
  • Communicable disease
  • Vector-borne disease
  • Lifestyle-related non-communicable disease
  • Water-borne disease
During a disease outbreak, a school plans the following actions: I. Encourage students with symptoms to stay at home. II. Ensure regular handwashing. III. Eliminate stagnant water on the school campus. Which statement best describes this plan?
  • It focuses on only one method of disease prevention.
  • It combines several preventive measures to reduce disease transmission through different routes.
  • It is useful only for non-communicable diseases.
  • It prevents diseases without involving personal hygiene.
A community health survey reports the following observationsI. Children are fully vaccinated.II. Safe drinking water is available.III. The locality is kept clean.IV. People frequently take antibiotics without medical advice.Which observation should be addressed most urgently to reduce future health risks?
  • Vaccination
  • Clean surroundings
  • Maintaining cleanliness
  • Unnecessary use of antibiotics without medical advice
Which lifestyle change is directly suggested to lower the risk of obesity and related disorders?
  • Skip breakfast to cut daily calories
  • Reduce oil and sugar intake in the diet
  • Avoid all carbohydrates completely
  • Increase salt in daily meals moderately
What public health measure most effectively prevents water- and vector-borne diseases?
  • Safe drinking water availability
  • Routine gym-based exercise sessions
  • Indoor air fragrance diffusers
  • Daily use of herbal supplements
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