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Saniya claims to her friend Vinita that “Antibiotics can cure any infection, so we don’t need to worry about diseases.” What question(s) can Vinita ask her to help Saniya understand that her statement is incorrect?
Vinita might say, “Saniya, do you know that antibiotics work only on bacteria, not viruses? So they can’t cure flu, cold or COVID-19.” She can also ask, “What happens if we take antibiotics for the wrong illness?” and “Have you heard of antibiotic resistance?” These questions can help Saniya think aRead more
Vinita might say, “Saniya, do you know that antibiotics work only on bacteria, not viruses? So they can’t cure flu, cold or COVID-19.” She can also ask, “What happens if we take antibiotics for the wrong illness?” and “Have you heard of antibiotic resistance?” These questions can help Saniya think and realize that antibiotics are not a cure-all and must be used carefully to avoid harmful effects.
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/
See less(i) In which three months were the dengue cases highest? (ii) In which month(s) were the cases lowest? (iii) What natural or environmental factors during the peak months might contribute to the increase in dengue cases? (iv) Suggest a few preventive steps that the community or government can take before the peak season to reduce the spread of dengue.
(i) The three months with the highest dengue cases are usually August, September and October. These months fall during and after the rainy season when stagnant water becomes common, creating ideal breeding grounds for mosquitoes that spread dengue. (ii) Dengue cases are usually the lowest inRead more
(i) The three months with the highest dengue cases are usually August, September and October. These months fall during and after the rainy season when stagnant water becomes common, creating ideal breeding grounds for mosquitoes that spread dengue.
(ii) Dengue cases are usually the lowest in January and February, when the weather is cooler and drier. Mosquito breeding reduces during these months due to fewer water collections and lower temperatures, making disease transmission less likely.
(iii) Heavy rainfall, water stagnation and warm temperatures during monsoon and post-monsoon months create perfect conditions for mosquito breeding. Poor drainage and uncovered water storage also increase the risk of mosquito-borne diseases like dengue during these months.
(iv) The government can run awareness drives, fumigate mosquito-prone areas and ensure proper drainage. Communities should clean surroundings, cover water containers and eliminate stagnant water. These steps reduce mosquito breeding and help control dengue before peak season begins.
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/
See lessImagine you are in charge of a school health campaign. What key messages would you use to reduce communicable and non-communicable diseases?
In a school health campaign, I would encourage regular handwashing, vaccinations, eating balanced meals, daily exercise and proper sleep. I would discourage junk food, smoking and long screen time. I would also stress keeping the school environment clean, avoiding contact with sick students and usinRead more
In a school health campaign, I would encourage regular handwashing, vaccinations, eating balanced meals, daily exercise and proper sleep. I would discourage junk food, smoking and long screen time. I would also stress keeping the school environment clean, avoiding contact with sick students and using masks when needed. Teaching these practices helps prevent both communicable and non-communicable diseases, leading to a healthier and happier school community.
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/
See lessIt is recommended that we should not take an antibiotic for a viral infection like a cold, a cough or flu. Can you provide the possible reason for this recommendation?
Cold, flu and cough are caused by viruses, not bacteria. Antibiotics only work against bacterial infections. Taking them for viral infections is useless and can be harmful. It may cause antibiotic resistance, where bacteria stop responding to medicine. This makes future infections harder to treat. TRead more
Cold, flu and cough are caused by viruses, not bacteria. Antibiotics only work against bacterial infections. Taking them for viral infections is useless and can be harmful. It may cause antibiotic resistance, where bacteria stop responding to medicine. This makes future infections harder to treat. That’s why doctors advise not to use antibiotics unless truly needed and prescribed for a bacterial infection.
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/
See lessWhich disease(s) among the following may spread if drinking water gets contaminated by the excreta from an infected person? Hepatitis A, Tuberculosis, Poliomyelitis, Cholera, Chickenpox.
Diseases like Hepatitis A, Poliomyelitis and Cholera spread when water is contaminated with the feces of an infected person. These are waterborne diseases and drinking such water can lead to serious illness. The pathogens enter the body through the digestive system. Clean drinking water, good sanitaRead more
Diseases like Hepatitis A, Poliomyelitis and Cholera spread when water is contaminated with the feces of an infected person. These are waterborne diseases and drinking such water can lead to serious illness. The pathogens enter the body through the digestive system. Clean drinking water, good sanitation and hygiene practices are essential to prevent the spread of these infections.
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/
See less