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Waste minimisation and recycling study unit

consumers and decomposers. Achievement Objective Level 6 Number 1 Investigate and describe examples of different types of helpful and harmful micro- organisms. Achievement Objective Level 7 Number 4 Research and develop a defensible position about a selected issue affecting the New Zealand environment. Making Sense of the Material World Achievement Objective Level 3 Number 4 Research the use and purpose of technology in the disposal, or recycling, of some common materials.