To meet the needs of the present without jeopardizing that of the future.
Explanation:
Sustainable development applies to all faculties of resource allocation. Most available resources are limited in their capacity to satisfy our limited human wants.
Sustainable development is such development geared towards satisfying the developmental needs of our present generation without endangering those of the future generations.
It allows for safe and efficient use/allocation of resources to meet wants.
Conservation of resources is an approach towards sustainable development.
The use of recycled materials is one method of attaining the obligations of sustainable development.
the third one, measured or observed without changing the identity and composition of matter. because physical property does not under go any change but can be put back.
