Conservation (noun)

1. The protection, preservation, management, or restoration of wildlife and of natural resources such as forests, soil, and water.
2. The preservation and protection of something, such as a cultural heritage site or work of art.

Origin:

Late 16th century (in the sense "preservation of something"): from latin conservatio(n-), from the verb conservare "keep, preserve".

Examples:

1. The organization focuses on conservation of endangered species.
2. The government has a policy for conservation of natural resources.
3. They are working on a project for conservation of the forest.
4. The company is involved in conservation of the environment.
5. The conservation of the historical building is important for future generations.