Subject: General Science
Book: NCERT Science Class 9
Health is a state of complete physical, mental, and social well-being.
- **Types of Diseases**:
- Infectious diseases (caused by pathogens like bacteria, viruses).
- Non-infectious diseases (caused by lifestyle or genetic factors).
- **Prevention of Diseases**:
- Vaccination, hygiene, balanced diet.
- **Immunity**:
- The body’s defense mechanism against diseases.
**Possible Exam Questions:**
1. What is the difference between infectious and non-infectious diseases?
2. Explain how vaccines help prevent diseases.
3. How do bacteria and viruses cause diseases?
4. What is the role of immunity in disease prevention?
5. Discuss the impact of hygiene on public health.
Which disease is caused by the deficiency of vitamin C?
View QuestionWhat is the chemical formula of water?
View QuestionWhat is the function of hemoglobin in the blood?
View QuestionWhich acid is found in the human stomach?
View QuestionWhich organelle is responsible for photosynthesis in plants?
View QuestionWhat is the SI unit of temperature?
View QuestionWhat is the approximate age of the Earth?
View QuestionWhat is the primary component of the Sun?
View QuestionWhat is the pH of pure water at 25°C?
View QuestionWhich gas is most abundant in Earth’s atmosphere?
View Question