It encompasses all living organisms and their physical environments, including:
* The Earth's surface: This includes land, water, and the very thin layer of soil and sediment that supports plant life.
* The atmosphere: The air we breathe, which provides oxygen and protects us from harmful radiation.
* The hydrosphere: All the water on Earth, including oceans, lakes, rivers, and groundwater.
The biosphere is a complex and interconnected system, where all living things are dependent on each other and the environment. It is essential for the survival of all life on Earth.
