pollution - The presence or introduction of harmful or toxic substances into the environment, causing adverse effects on living organisms and ecosystems, environment - The surroundings or conditions in which a person, animal, or plant lives or operates; includes both natural and human-made elements, Electronic - Relating to technology that involves the controlled conduction of electrons, often referring to devices or systems powered by electricity, devices - Tools or machines designed for a particular purpose, often electronic in nature, such as smartphones, tablets, or computers., collection - The act of gathering items, especially for a specific purpose or event, such as gathering e-waste for recycling., unused - Not being used; not in use or unutilized, broken - Not functioning or damaged; the opposite of whole or intact.,

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