CBSE Class 8 Science Health The Ultimate Treasure (Class 8 NCERT New) Quiz 12

1. In a school health campaign, which message best reduces disease burden?

A Discourage physical activity daily B Promote vaccines and hygiene C Share snacks to build friendships D Only focus on rare disorders

2. Why does the immune response become stronger upon second exposure to the same pathogen?

A Body stores immune memory cells after first exposure B White blood cells double naturally every month C Pathogen becomes weaker after first infection D Body temperature permanently rises after first illness

3. Which item would best belong in a month-long health diary to track well-being?

A Daily food, exercise, sleep, and screen time B Weekly test scores and homework pages C Local weather forecasts and humidity levels D Favorite songs and television episodes

4. Which step is essential in adult CPR when breathing stops suddenly?

A Wait ten minutes before acting calmly B Provide chest compressions in correct sequence C Place a heavy blanket over the chest D Offer water to moisten the throat

5. Smallpox was eradicated worldwide primarily due to which public health strategy?

A Mass vaccination campaigns across populations B Strict quarantine for every traveler C Daily vitamin supplements for citizens D Universal hospital bed availability

6. Which Indian biomedical researcher is correctly matched with the field of health and diseases?

A Yellapragada Subbarao—biomedical research contributions B Albert Einstein—immunization program leader C Isaac Newton—nutrition counseling pioneer D Marie Curie—public CPR training advocate

7. How does your body respond to an infection such as common cold?

A The body activates the immune system to fight the viral infection. B The body increases blood sugar levels to fight the infection. C The body stops producing antibodies during a cold. D The body reduces oxygen intake to combat the virus.

8. We rarely see cases of smallpox or polio these days, but diseases like diabetes and heart problems are more common. Why is this the case?

A Smallpox and polio have been controlled by vaccines, while diabetes and heart problems are more common due to lifestyle factors. B Smallpox and polio are caused by poor diet, while diabetes and heart problems are caused by viruses. C Smallpox and polio are more common now because of unhealthy lifestyles, while diabetes and heart problems are rare. D Smallpox and polio have increased due to lack of exercise, while diabetes and heart problems have decreased due to vaccination.

9. Could climate change lead to new types of diseases?

A Yes. B No. C Only in animals. D Only in plants.

10. Emotions like stress or worry can affect us and make us sick by:

A weakening the immune system and making us more susceptible to illness B strengthening the immune system and preventing illness C having no effect on our health D improving our mood and making us healthier