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Tunnel
Summary
Everything you need to understand or teach
Tunnel
.
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1 Encyclopedia Article
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The
Tunnel
Study Pack contains:
Encyclopedia Articles
(1)
Tunnel
843 words, approx. 3 pages
Tunnel Tunnels are used for transportation, mining, and drainage purposes, as well as for installation of power sources. Although tunneling is difficult and dangerous, the benefits are often worth the...
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