Textbook Notes (363,559)
Canada (158,426)
EESA06H3 (234)
Lisa Tutty (13)
Chapter 1

Chapter 1.docx

1 Page
Unlock Document

University of Toronto Scarborough
Environmental Science
Lisa Tutty

Chapter 1 – The earth system Earth science: interactions among the four parts of the earth system: atmosphere (air, water), hydrosphere aka cryosphere th (water, ice), biosphere (plants, animals) and geosphere (land, rocks). The exosphere is sometimes considered the 5 system and consists of the sun and features from space. A system is defined as inter-related elements comprising a unified whole. It consists of elements which are connected together in order to facilitate the flow of information, matter or energy. Components of the earth system: 1. Lithosphere: the solid earth; the upper part of the solid earth which interacts with the other components of the earth system. It includes the physical layers. The crust of the earth interacts with everything else. 2. Atmosphere: a mixture of gases that consists of 78% nitrogen and 21% oxygen 3. Hydrosphere: total of earth’s liquid and solid water. ‘Sub-sphere’ = cryosphere which means frozen water 4. Biosphere: living and dead organic components. It is where living organisms can live or is suitable for living. It includes vegetation on land and ocean, animals, plants, forests, ponds. How is ecosphere different from the biosphere? – they are NOT the same. Ecosphere is the interaction between the biosphere and with the other 3 (atmosphere, lithosphere and hydrosphere) Technosphere is the sum of industrial, technological and agricultural components of human activity. Eg: manufacturing, agriculture, transportation and energy production. It affects the natural system of the earth (ecosphere). Sources of energy 1. External energy from solar radiation: drives the hydrologic cycle and the cir
More Less

Related notes for EESA06H3

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.