Which part of the Earth does the biosphere include?

The biosphere encompasses all life forms and the environments in which they exist on Earth. This includes not just the land areas but also the oceans and the atmosphere, essentially all regions where life can be found. It extends from the deepest roots of trees to the highest clouds where birds soar and includes the various ecosystems that support life, such as forests, grasslands, deserts, freshwater bodies, and ocean environments.

This holistic view of the biosphere is critical for understanding how life interacts with different components of Earth, such as water, air, and soil. Each of these elements plays a vital role in supporting life, and the biosphere reflects the interconnectedness of all living organisms and their physical surroundings.