conservation of petroleum resources Controlled utilization, protection and development of exploited and potentially exploitable sources of crude oil to meet current demand and ensure future requirements
natural resource conservationThe management of living and non-living resources in such a way as to sustain the maximum benefit for present and future generations
water resources conservationControlled utilization or protection of any supply of water so that it is potentially useful for some purpose, such as for an economic, recreational or life-sustaining purpose