KnowraBiosphereLinked fromLinked fromThe 9 pages that link to Biosphere, each with the reason it gives.All 9Broader topic 3Related 2Narrower topic 4EcologyNarrower topic: It is ecology's broadest scale of study.Nature (natural world)Narrower topic: It connects local ecosystems into the planet-wide domain of life.Natural environmentNarrower topic: It encompasses the living parts of Earth's environments at planetary scale.Oxygen cycleNarrower topic: Living organisms take up, release, and incorporate oxygen throughout the cycle.