The correct answer was given: Brain
Sustainable development implies the fulfilment of several conditions: preserving the overall balance, respect for the environment, and preventing the exhaustion of natural resources. reduced production of waste and the rationalisation of production and energy consumption must also be implemented. sustainable development is presented as a more or less clean break from other modes of development, have led and are still leading to worrying social and ecological damage on both a worldwide and a local scale. in order to be sustainable, development must combine three main elements: fairness, protection of the environment, and economic efficiency. a sustainable development project must be based on a better-developed mode of consultation between the community and the members it comprises. the success of such a policy also depends on consumers accepting certain constraints and citizens observing certain requirements with regard to transparency and participation.