CBSE Class Notes and Question Answers Online – Classnotes123
Human beings take oxygen from the atmosphere and release carbon dioxide in return. This complete process occurs in Breathing. The process of transportation of oxygen in human being is as …
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George Orwell’s haunting fairy tale Animal Farm explains a deep and scary message about corruption, power, and dictatorship. Orwell does this through a simple and short story of animals in …
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The Phantom Tollbooth by Norton Juster tells us about the side of our mind that is bored, doesn’t want to think, and considers knowledge as a waste of time (what …
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Written by Tolkien’s own children, The Hobbit is the prelude to the Lord of the Rings. It is a more light-hearted book compared to Lord of the rings. The …
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Earth Earth is the only planet in our Solar System that has water and air. Earth has land masses and water bodies. The large land masses on Earth are called …
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Blood is the red color connective tissue fluid which circulates in our body. Functions of blood are as follows Blood carries oxygen from the lungs to different parts of the …
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What are rocks made up of? Rocks are made of minerals. Rock may contain one or more minerals. Minerals are the building blocks of rocks; each rock is a mixture …
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What is heterotrophic nutrition? It is the mode of nutrition in which an organism cannot make its own food from simple organic materials and depends on other organisms for its …
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Photosynthesis is the process by which green plants synthesize organic food as carbohydrates in the presence of sunlight, chlorophyll water, CO2 and some other raw materials. Oxygen is released in …
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