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Number System Class 9 Notes – Chapter 1 What is Number System?A number system is a system for representing or expressing numbers of a certain type. We can define it as a writing system to express a number. Number Systems Class 9 Notes is provided here to help students understand the concepts more effectively.

Math Notes For Class 9 Maths is an interesting subject that focuses on the study of numbers, shapes and pattern. Besides, maths help to solve problems that can be related to the real world and as everything in this universe follows a pattern the subject of mathematics can be applied in many instances. The importance …

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Management of Natural Resources Class 10 Notes: Chapter 16 What are Natural Resources?The resources which occur naturally within the environment without the actions of a human kind is termed as the Natural resources. Sunlight, air, water, forest, timbers, soil, rocks, natural gases, fuels, crude oil, mineral ores, atmosphere, mountains, wetlands, animals, plants and biodiversity are …

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Our Environment Class 10 Notes: Chapter 15 What is Environment?An Environment can be defined as everything that is around us, which includes both living and nonliving things. The environment plays an important role in the existence of life. Please refer Our Environment Class 10 Notes for more revision notes.

Sources of Energy Class 10 Notes: Chapter 14 Sources of Energy Class 10 Notes :There are two main sources of energy and it includes: Renewable Energy : The energy which can be renewed or replaced over and over again is termed as the Renewable energy. This energy can never be depleted. Renewable energy is derived …

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Magnetic Effects of Electric Current Class 10 Notes: Chapter 13 A magnet is a material that produces a magnetic field. It is a substance which strongly attracts to special metals such as iron, cobalt, nickel and other iron-containing metals. The magnetic field is defined as an area around a magnet where a magnetic force is …

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Electricity Class 10 Notes: Chapter 12 What is Electricity?Electricity Class 10 Notes can be simply defined as the physical flow of electrons or a stream of electrons moving in a conductor to efficiently deliver the energy found in primary sources to end users. Electricity can be created in three ways: Electromagnetic conversion. Chemical reaction. Solid-state …

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The Human Eye and the Colourful World Class 10 Notes: Chapter 11 The human eye, it is the most valuable and sensitive sense organ which help us to see the beauty and the colorful world around us. It is similar to a camera. We all have been gifted with two eyes which gives a wider …

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Light Reflection and Refraction Class 10 Notes: Chapter 10 What is Light?Light can be simply defined as the form of energy which helps us to see objects in dark. There are both natural and artificial sources of light. Sunlight is the best example for the natural sources of light. Reflection and refraction of light are …

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Heredity and Evolution Class 10 Notes: Chapter 9 What is Heredity?Heredity is defined as the sum of all biological processes through which particular genetic characteristics are transmitted from the parents to their offspring. This process is observed in all sexual reproduction and happens during meiosis and fertilization. In this process, an offspring get their genetic …

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