Yes, health is more than avoiding sickness. It includes physical strength, mental happiness and good relationships. True health means feeling well, staying active, being peaceful and living positively with family, friends and surroundings. Class 8 Science Curiosity Textbook Chapter 3 Health ...
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Edward Jenner discovered the smallpox vaccine in 1796. He used cowpox virus to protect people. His work saved millions and started the practice of vaccination to prevent deadly diseases worldwide. class 8 science chapter 3 health the ultimate treasure question answer Class ...
Parasites are organisms that live in or on another living being and take nutrients from it. They harm the host. Examples include lice, tapeworms and roundworms found in the body or on skin. class 8 science chapter 3 health the ultimate ...
Yes, climate change can increase the spread of diseases. Warmer temperatures and changing rainfall can lead to more mosquitoes, poor air quality and water problems, causing new infections like dengue and malaria to rise. Class 8 Science Curiosity Chapter 3 Health: ...
Before the trip, consult a doctor and carry mosquito repellents and nets. During the trip, wear full-sleeved clothes and avoid mosquito-prone areas. After the trip, watch for symptoms like fever and visit a doctor if needed. Class 8 Science Grade 8 ...