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Chicago: The Legacy Of Carl Sandburg. Chicago: The Legacy ... American war. After
the war, Carl attended Lombard College in his hometown. There ...
Submitted by super_klasse on April 26, 2005
Category: Biographies
Words: 1250 | Pages: 5
Views: 395
Popularity Rank: 17,150
Average Member Grade: N/A (Add a Comment / Grade this Paper)
Many people have already dammed a small stream using sticks and mud
by the time they become adults. Humans have used dams since early
civilization, because four-thousand years ago they became aware that
floods and droughts affected their well-being and so they began to
build dams to protect themselves from these effects.1 The basic
principles of dams still apply today as they did before; a dam must
prevent water from being passed. Since then, people have been
continuing to build and perfect these structures, not knowing the full
intensity of their side effects. The hindering effects of dams on
humans and their environment heavily outweigh the beneficial ones. The
paragraphs below will prove that the construction and presence of dams
always has and will continue to leave devastating effects on the
environment around them.
Firstly, to understand the thesis people must know what dams are. A
dam is a barrier built across a water course to hold back or control
water flow. Dams are classified as either storage, diversion or
detention. As you could probably notice from it's name, storage dams
are created to collect or hold water for periods of time when there is
a surplus supply. The water is then used when there is a lack of
supply. For example many small dams impound water in the spring, for
use in the summer dry months. Storage dams also supply a water supply,
or an improved habitat for fish and wildlife; they may store water for
hydroelectricity as well.
A diversion dam is a generation of a commonly constructed dam which
is built to provide sufficient water pressure for pushing water into
ditches, canals or other systems. These dams, which are normally
shorter than storage dams are used for irrigation developments and for
diversion...
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