Introduction to Geography: People, Places, and Environment, Global Edition

Published by Pearson
ISBN 10: 1-29206-126-X
ISBN 13: 978-1-29206-126-9

Chapter 1 - Introduction to Geography - Review and Discussion Questions - Page 75: 7

Answer

1) The Lithosphere. The Lithosphere forms the major portion of the Earth, forming the bulk of the solid mass of our planet. It comprises of a solid crust, a solid to semi solid mantle and a core divided into liquid and solid portions. The movement of the molten iron around the solid superheated iron core is what gives our planet 'life' as the motion creates our magnetic field like a 'dynamo' which protects our planet and our lives from supercharged particles ejected from the sun and other hypercharged plasmatic particle phenomena. In addition, the magnetic field also enables navigation for ships, aircraft, vehicles and certain magnetic sense enabled animals. 2) Surrounding the Lithosphere is the Hydrosphere which contains the entire whole of the waters on the surface, the atmosphere and within the crust and mantle of the earth. The hydrosphere is critical for life as it paves the way for life and all life forms in general – animals, birds, insects, aquatic life forms, microorganisms to live and lead a meaningful life. In addition, the bulk of the hydrosphere – the oceans and the seas are crucial for the economies of the world as the vast volume of water enables transport of men and materials from one country to another. The hydrosphere is something that is unique to our planet and gives the unique ‘blue’ shade to our home world. 3) Along with the Hydrosphere exists the Biosphere, which is the sphere wherein all life forms generally live and thrive on the earth. The term sphere is used colloquially as this sphere comprises the immediate, visible feature of the earth. This sphere is categorized by all activities and movement that comprises life in general. Life has been detected deep within the bowels of the earth and high above the atmosphere up to levels once thought impossible with newly discovered, bacteria, microorganisms and other deep burrowing creatures and insects who existence could motivate changes to the available literature regarding the limits wherein life is possible. 4) The Atmosphere is the largest sphere of the earth and comprises of an envelope of gases vital for our survival. The Atmosphere is divided into several layers, differing in terms of volume and mass. The bulk of the atmosphere is found on the earth, up to a distance of 15,000 meters. It is in this sphere that all activities we know as life is possible. The atmosphere is vital for trade and economic activities, as it enables air travel to happen. It is difficult to state where the atmosphere actually ‘ends’ as the volume of gases that make up the atmosphere become progressively lighter and scarcer with the increase of height. It is believed that the final level of the atmosphere is the exosphere wherein the boundary of the earth ends and space begins.

Work Step by Step

1) The Lithosphere. The Lithosphere forms the major portion of the Earth, forming the bulk of the solid mass of our planet. It comprises of a solid crust, a solid to semi solid mantle and a core divided into liquid and solid portions. The movement of the molten iron around the solid superheated iron core is what gives our planet 'life' as the motion creates our magnetic field like a 'dynamo' which protects our planet and our lives from supercharged particles ejected from the sun and other hypercharged plasmatic particle phenomena. In addition, the magnetic field also enables navigation for ships, aircraft, vehicles and certain magnetic sense enabled animals. 2) Surrounding the Lithosphere is the Hydrosphere which contains the entire whole of the waters on the surface, the atmosphere and within the crust and mantle of the earth. The hydrosphere is critical for life as it paves the way for life and all life forms in general – animals, birds, insects, aquatic life forms, microorganisms to live and lead a meaningful life. In addition, the bulk of the hydrosphere – the oceans and the seas are crucial for the economies of the world as the vast volume of water enables transport of men and materials from one country to another. The hydrosphere is something that is unique to our planet and gives the unique ‘blue’ shade to our home world. 3) Along with the Hydrosphere exists the Biosphere, which is the sphere wherein all life forms generally live and thrive on the earth. The term sphere is used colloquially as this sphere comprises the immediate, visible feature of the earth. This sphere is categorized by all activities and movement that comprises life in general. Life has been detected deep within the bowels of the earth and high above the atmosphere up to levels once thought impossible with newly discovered, bacteria, microorganisms and other deep burrowing creatures and insects who existence could motivate changes to the available literature regarding the limits wherein life is possible. 4) The Atmosphere is the largest sphere of the earth and comprises of an envelope of gases vital for our survival. The Atmosphere is divided into several layers, differing in terms of volume and mass. The bulk of the atmosphere is found on the earth, up to a distance of 15,000 meters. It is in this sphere that all activities we know as life is possible. The atmosphere is vital for trade and economic activities, as it enables air travel to happen. It is difficult to state where the atmosphere actually ‘ends’ as the volume of gases that make up the atmosphere become progressively lighter and scarcer with the increase of height. It is believed that the final level of the atmosphere is the exosphere wherein the boundary of the earth ends and space begins.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.