1. Antibiotics are drugs used to kill or stop the growth of harmful bacteria inside the body. They are effective only for bacterial infections and not for viral ones like flu or cold. Doctors prescribe them carefully for illnesses like tuberculosis or urinary infections. If misused, they can stop workiRead more

    Antibiotics are drugs used to kill or stop the growth of harmful bacteria inside the body. They are effective only for bacterial infections and not for viral ones like flu or cold. Doctors prescribe them carefully for illnesses like tuberculosis or urinary infections. If misused, they can stop working, leading to antibiotic resistance. That’s why antibiotics should only be taken as prescribed, for the right illness and for the correct duration.

     

    For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:

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  2. Bacteria develop resistance when antibiotics are overused or taken incorrectly. If people take antibiotics for viral infections or stop medicine early, some bacteria survive. These surviving bacteria change and become stronger. They multiply and share resistance with other bacteria. Over time, manyRead more

    Bacteria develop resistance when antibiotics are overused or taken incorrectly. If people take antibiotics for viral infections or stop medicine early, some bacteria survive. These surviving bacteria change and become stronger. They multiply and share resistance with other bacteria. Over time, many bacteria no longer respond to common antibiotics. This makes infections harder to cure. Responsible use of antibiotics and hygiene are key to preventing this dangerous problem.

     

    For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:

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  3. Antibiotic resistance spreads when antibiotics are overused or used wrongly. Bacteria become strong and stop responding to medicines. These resistant bacteria spread through soil, food, animal products and infected people. Hospitals, crowded places and poor hygiene speed up this spread. If one persoRead more

    Antibiotic resistance spreads when antibiotics are overused or used wrongly. Bacteria become strong and stop responding to medicines. These resistant bacteria spread through soil, food, animal products and infected people. Hospitals, crowded places and poor hygiene speed up this spread. If one person carries resistant bacteria, they can unknowingly infect others. Preventing this needs proper hygiene, avoiding unnecessary antibiotics and using medicines only as prescribed by doctors.

     

    For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:

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  4. Disease treatment includes identifying the illness and giving the right care. For bacterial infections, antibiotics are used. Viral infections need rest, hydration and monitoring. Chronic or non-communicable diseases like diabetes or asthma need lifestyle changes, medicine and regular checkups. VaccRead more

    Disease treatment includes identifying the illness and giving the right care. For bacterial infections, antibiotics are used. Viral infections need rest, hydration and monitoring. Chronic or non-communicable diseases like diabetes or asthma need lifestyle changes, medicine and regular checkups. Vaccines help prevent some diseases. Timely treatment, following the doctor’s advice and avoiding self-medication are important. Each disease needs specific care and early treatment gives better results.

     

    For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:

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  5. Edward Jenner was a British doctor who found that milkmaids with cowpox didn’t get smallpox. He tested this by giving cowpox to a boy, who later stayed healthy when exposed to smallpox. This experiment led to the discovery of the world’s first vaccine. His idea of using mild viruses to build immunitRead more

    Edward Jenner was a British doctor who found that milkmaids with cowpox didn’t get smallpox. He tested this by giving cowpox to a boy, who later stayed healthy when exposed to smallpox. This experiment led to the discovery of the world’s first vaccine. His idea of using mild viruses to build immunity saved millions from smallpox and led to global vaccination efforts that finally eradicated the disease in 1980.

     

    For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:

    https://www.tiwariacademy.com/ncert-solutions/class-8/science/

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