Question

What is the biosphere?

• A. It is the regions of the surface and atmosphere of the earth or another planet occupied by living organisms.
• B. It is a layer or a set of layers of gases surrounding a planet or another material body, that is held in place by the gravity of that body.
• C. It is the combined mass of water found on, under, and above the surface of the planet Earth, minor planet or natural satellite.
• D. It is the rigid, outermost shell of a terrestrial-type planet, or natural satellite, that is defined by its rigid mechanical properties.

Answer 1

The correct option is A It is the regions of the surface and atmosphere of the earth or another planet occupied by living organisms.

The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth, a closed system, and largely self-regulating.