BREE 533- Midterm Exam Guide - Comprehensive Notes for the exam ( 84 pages long!)
16 Feb 2018
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Document Summary
Life cannot exist without water because: all living things are made up of water. Water absorbs heats up and cools down slowly as compared to land. So, it affects the climate and rain clouds are built up by evaporation from water bodies. Importance of water for humans: body function, food preparation, washing and cleaning, sanitation, sea food and aquatic plants, power generation, transportation (ships, entertainment (recreational activities) Many people throughout the world face the problem of fresh water shortage. As in 2007, every one in three people are facing water shortage problem. Also, in some developing countries there is unavailability of necessary infrastructure to draw water from the rivers or aquifers. This is called economic water shortage and about 1. 6 billion people face it. Uses of water: agriculture (primary use, about 67%, domestic, recreation, wildlife, mining, manufacturing. Historically, increasing agricultural production (i. e, arability and yield) was the primary objective due to which environmental quality suffered.
