Which of These Regions of Earth Is Not Part of the Biosphere

question 102

Multiple Choice

Which of these regions of Earth is not part of the biosphere?

• A) Mantle
• B) Lower atmosphere
• C) Soil and sediments
• D) Photic zone of the ocean
• E) Abyssal zone of the ocean

---

Definitions:

Pulmonary Respiration

The process of exchanging oxygen and carbon dioxide between the lungs and the environment; also known as breathing.

Pulmonary Ventilation

The process of moving air in and out of the lungs, facilitating gas exchange with the external environment.

Transport of Respiratory Gases

The process by which oxygen is carried to body cells and carbon dioxide is carried away from them, primarily involving hemoglobin in the blood.

Residual Volume

The amount of air remaining in the lungs after a forceful exhalation, ensuring continuous gas exchange.