Non-biodegradable materials, like plastic, do not break down easily and accumulate in the environment. They contribute to pollution, harm wildlife, and create long-lasting waste problems, posing a significant environmental challenge.
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Biodegradable materials are those that can be broken down by natural processes, like wood, cotton, and paper. They decompose into harmless substances, reducing environmental impact and contributing to sustainability.
Cotton is a natural, breathable material that is soft and comfortable. It absorbs moisture well, making it ideal for clothing. Cotton is also biodegradable and renewable, making it an environmentally friendly choice.
Glass is used for windows, bottles, and decorative items due to its transparency and smooth surface. It is also resistant to water and chemicals, making it suitable for laboratory equipment.
Materials are selected based on their properties, such as strength, flexibility, or durability. For example, metal is chosen for tools due to its strength, while plastic is used for containers because it is lightweight.
Plastic is widely used because it is lightweight, durable, and versatile. It can be molded into various shapes and sizes, making it useful for packaging, household items, and industrial products.
Natural materials come from nature and require minimal processing, like wood and cotton. Man-made materials are chemically processed and engineered for specific properties, like plastic and glass. They differ in origin and usage.
Metals are strong, hard, and durable. They are good conductors of heat and electricity, making them ideal for tools, machinery, and electrical wiring. Metals are also malleable and can be shaped easily.
Wood is useful because it is strong, durable, and can be easily shaped. It is used in construction, furniture making, and as fuel. Its natural availability makes it a widely used material.
Man-made materials are those created by humans through chemical processes, like plastic, glass, and synthetic fibers. These materials are designed to have specific properties for particular uses, like durability or flexibility.