ENVS195 Study Guide - Midterm Guide: Ecological Footprint, Ultraviolet, Cryosphere
24 Nov 2015
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Document Summary
Ecological footprint: the land and sea base required to provide your needs, including all energy and material requirements. Includes disposal of waste (this is actually where most of the footprint comes from). Environment: includes the atmosphere, hydrosphere, cryosphere, lithosphere and biosphere where living species and inanimate phenomena exist. Resources: specific and generally thought of to be such things as forests, wildlife, oceans, rivers and lakes, and minerals. Lithosphere: outer layer of the earth"s mantle and the crust. Contains rocks, minerals, and soils that provide the nutrients needed to support life. Cryosphere: the water that is frozen on earth. Atmosphere: the gases surrounding the lithosphere and hydrosphere. It can be further divided into four main sub-layers. The layers all combine to produce the conditions needed for life on the ecosphere. Troposphere: 99% of the water vapour and up to 90% of the air. Stratosphere: the main body of the atmosphere that blocks out most of the ultraviolet radiation from the sun.
