Nitrogen - This gas makes up about 78% of Earth's atmosphere and is essential for plant growth when "fixed" into a usable form., Pollution - is the introduction of harmful materials into the environment, Segregation - is the sorting and separation of waste types to facilitate recycling and correct onward disposal., Modification - the action of modifying something, Preserve - maintain (something) in its original or existing state.,

ACTIVITY 1: UNLOCKING IDEAS

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