natural sciences - are subjects such as biology, physics and chemistry which study things from nature, carbon footprint - is a measure which calculates the amount of carbon dioxide somebody or something produces, alternative energy - is energy that comes from water, wind and the sun, sustainability - is an activity that uses resources in a way which doesn't damage environment, natural resources - are things such as minerals or plants that exist in a place and are used by people, A pavilion - is a building or group of buildings where sports, entertainments and fairs take place,

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