Answer :
The principal of which the total value of a physical activity. It's different B'Coz of it's a principal of values and preservation is state of being preserving, especially to the specified degree, that why it is different.
Conservation is an ethic of resource use, allocation, and
protection. Its primary focus is upon maintaining the health of the
natural world, its fisheries, habitats, and biological diversity.
Secondary focus is on materials conservation and energy conservation, which are seen as important to protect the natural world.