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Essay - Effects Of Dam Building - Example Papers

Essay - Effects Of Dam Building

Grade 10 Geography
Units 12, 13, 14
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 ...

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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 the of
water from a stream to a reservoir. Diversion dams are mainly built to
lessen the effects of floods and to trap sediment.

Overflow dams are designed to carry water which flow over thier crests,
because of this they must be made of materials which do not erode. Non-
overflow dams are built not to be overtopped, and they may include earth
or rock in their body. Often, two types ...

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Essay - Effects Of Dam Building. (2008, February 7). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Essay-Effects-Of-Dam-Building/78666

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PAPER DETAILS

Added: 2/7/2008 09:29:17 AM
Category: Miscellaneous
Type: Premium Paper
Words: 1215
Pages: 5

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