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.
What is the SI unit of power?
View QuestionWhat is the largest organ in the human body?
View QuestionWhat is the most abundant element in the universe?
View QuestionWhat is the term for water changing from liquid to gas?
View QuestionWhich part of the human eye is responsible for focusing light on the retina?
View QuestionWhich acid is found in the human stomach?
View QuestionWhat type of electromagnetic radiation has the longest wavelength?
View QuestionWhich organelle is responsible for photosynthesis in plants?
View QuestionWhich gas is known as "laughing gas"?
View QuestionWhich organ is responsible for detoxifying harmful substances in the human body?
View Question