Red de palabras: 省エネ

Able to be maintained at a certain rate or level; particularly relating to conserving an ecological balance by avoiding depletion of natural resources.

Kankyou refers to the surroundings or conditions in which a person, animal, or plant lives or operates. It can describe the natural world (the environment) or specific social/physical settings like home, school, or work.

Shigen refers to valuable materials or assets, such as natural minerals, energy sources, or human talent, that can be used for production or survival. It is widely used in economics, environmental science, and daily life to describe both raw materials and abstract wealth.

Efficiency refers to the ability to achieve a goal or perform a task with the least waste of time, effort, or resources. In a business context, it specifically describes the ratio of output to input, focusing on productivity and streamlining processes.