video_enviro_worksheet1

video_enviro_worksheet1 - Video Worksheet The Environment A...

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1 Video Worksheet The Environment: A Historical Perspective Answer to the following questions must be based on the video – The Environment: A Historical Perspective – that you watch in class. Please keep the worksheet; you need it for Exam #1. 1. The Earth is ca. ____ billions of years old. The atmosphere is ____ nitrogen, ____ oxygen, & ___argon. 2. The world population around 1900 was below __________. It has increased to over __________. 3. The human-environment relation truly began to change when __________ was started about ________ years ago. 4. Agriculture set the stage for enormous human alternation of the environment from ________ to _________________________ to best suit our needs. Agriculture also set the stage for _____________ and the rest of our history. 5. The mountains of _________ and ________ were once covered with precious trees, i.e., the cedars of Lebanon. 6. A key difference between conservation and preservation is that conservation focuses on ________________________________________, whereas preservation emphasizes ________________ ________________________________________________. 7.
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This note was uploaded on 05/16/2011 for the course GPY 235 taught by Professor Xu during the Spring '08 term at Grand Valley State.

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video_enviro_worksheet1 - Video Worksheet The Environment A...

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