Communicable diseases are caused by pathogens like bacteria and viruses. They spread through air, water, food, insect bites or direct contact with infected people or surfaces. Hygiene and vaccination help prevent their spread. Class 8 Science Curiosity Chapter 3 Health: The ...
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It is always better to stop a disease before it happens. Good habits like hygiene, vaccination and a healthy lifestyle prevent illness. This saves money, time and suffering compared to treating a disease. Class 8 Science Curiosity Grade 8 Chapter 3 ...
His lonely surroundings and habit of using too much screen time made him unhealthy. Without friends or support, he became anxious and unwell. His poor environment and choices worsened his mental and physical health. Class 8 NCERT Science Curiosity Chapter 3 ...
Hepatitis A, Poliomyelitis and Cholera can spread through contaminated water. These diseases are caused by pathogens that pass from the infected person’s stool into water, spreading the infection to others when consumed. class 8 science chapter 3 health the ultimate treasure ...