What is the biosphere?

The biosphere refers to the global sum of all ecosystems, encompassing all regions of the Earth where life exists, including land, water, and the atmosphere. This definition captures the complexity of interactions among living organisms and their environment. Therefore, considering living organisms’ dependence on their habitat, the biosphere includes all the places on Earth that support life, from the deepest parts of the oceans to the highest mountain ranges.

This concept is broader than the habitats alone, as it encompasses all spatial areas that have conditions suitable for life and highlights the interconnectedness of different ecosystems. Understanding the biosphere in this way provides insight into the interrelations between various ecosystems and the need to consider environmental factors that sustain life across diverse habitats.