Simple Notes for all Subjects:

1. Mathematics:
- Algebra: Study of mathematical symbols and the rules for manipulating these symbols.
- Geometry: Study of shapes, sizes, properties, and relationships of figures and spaces.
- Trigonometry: Study of relationships between angles and sides of triangles.
- Calculus: Study of change and motion, involving derivatives and integrals.
- Probability: Study of chance and uncertainty.

2. Science:
- Physics: Study of matter, energy, and the interactions between them.
- Chemistry: Study of the composition, properties, and behavior of matter.
- Biology: Study of living organisms and their interactions with the environment.
- Environmental Science: Study of the environment and its impact on living organisms.
- Astronomy: Study of celestial objects, space, and the universe.

3. History:
- Ancient History: Study of human civilizations before the Middle Ages.
- Medieval History: Study of human civilizations during the Middle Ages.
- Modern History: Study of human civilizations from the Renaissance to the present.
- World History: Study of historical events and developments on a global scale.
- Indian History: Study of the history of the Indian subcontinent.

4. Geography:
- Physical Geography: Study of Earth's physical features, climate, and natural resources.
- Human Geography: Study of human activities, cultures, and societies in relation to the environment.
- Economic Geography: Study of the spatial distribution of economic activities and their impact.
- Political Geography: Study of the political organization of the world and its impact on geography.
- Environmental Geography: Study of the interactions between human activities and the environment.

5. Economics:
- Microeconomics: Study of individual economic agents and their decision-making processes.
- Macroeconomics: Study of the overall behavior and performance of the economy as a whole.
- International Economics: Study of economic interactions between countries and their impact.
- Development Economics: Study of economic development and the factors influencing it.
- Public Economics: Study of government policies and their impact on the economy.

6. Political Science:
- Comparative Politics: Study of political systems and institutions in different countries.
- International Relations: Study of interactions between countries, including diplomacy and conflict.
- Political Theory: Study of the concepts, ideas, and theories that underpin political systems.
- Public Administration: Study of the implementation of government policies and public services.
- Indian Polity: Study of the political system and governance in India.

7. English:
- Grammar: Study of the rules and structure of the English language.
- Literature: Study of literary works, including novels, poems, and plays.
- Writing Skills: Study of effective writing techniques and styles.
- Vocabulary: Study of words and their meanings.
- Comprehension: Study of understanding and interpreting written texts.

8. Hindi:
- Hindi Grammar: Study of the rules and structure of the Hindi language.
- Hindi Literature: Study of literary works in Hindi, including novels, poems, and plays.
- Hindi Writing Skills: Study of effective writing techniques and styles in Hindi.
- Hindi Vocabulary: Study of words and their meanings in Hindi.
- Hindi Comprehension: Study of understanding and interpreting written texts in Hindi.

Please note that these are just simple notes and not exhaustive explanations of each subject. Further reading and detailed study are recommended for a