The classification of non-living things is based on their properties, such as state (solid, liquid, gas), composition (elements, compounds), and characteristics (hardness, transparency). This helps in understanding their behavior and uses in various applications.
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Wood and iron excel in hardness, ensuring stability. Plastic and bamboo are lightweight, making them easy to move. Wood feels warmer in winter, while plastic is easy to clean and maintain over time.
Earlier, coal, wood, and dung cakes were commonly used as fuels for cooking. NCERT Book Curiosity Science Class 6 Class 6 Science NCERT Chapter 11 Chapter 11 Nature’s Treasures
Coal is mainly used for electricity production in India. Chapter 11 Nature’s Treasures Class VI NCERT Book Curiosity Science
CNG produces fewer pollutants and emissions, making it a cleaner fuel than petrol or diesel. Class 6 Science NCERT Chapter 11 NCERT Science Textbook Curiosity Science Session 2024-2025.