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Soils: Profiles and Processes
 This program looks at the way soils can vary even within a small area of a forest. A well-developed podzol is examined in detail, with samples taken from the center of each horizon and then analyzed for organic content, soil acidity, mineral content,...(more details) |
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$19.95 |
| DVD + 3-Year Streaming |
$29.93 |
| 3-Year Streaming |
$19.95 |
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Waves and Beaches
This program examines the various shapes taken by a beach in order to dissipate wave energy. Two beaches are compared-a fairly steep one, a mixture of sand and shingle, and, half a mile away, a flat and sandy one. Field measurement and laboratory dem...(more details) |
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River Channel Forms
 This program analyzes the dynamic nature of rivers and the relationship between their forms and processes. It examines the various functions a single river needs to perform, and shows how to measure river form and process, relate the two, and synthes...(more details) |
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$19.95 |
| DVD + 3-Year Streaming |
$29.93 |
| 3-Year Streaming |
$19.95 |
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Coastal Dunes
 At ground level, shallow seas, broad beaches, dunes, and waterlogged hollows seem to comprise a chaotic environment. In fact, there is order and form, produced by the interaction of wind, vegetation, and moving sand. Because sand dunes develop rapidl...(more details) |
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$19.95 |
| DVD + 3-Year Streaming |
$29.93 |
| 3-Year Streaming |
$19.95 |
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Valley Glaciers
Glaciers are a fundamental component of landscape, with broad historical significance, as important storages of fresh water, and as keys to the study of future glaciation and its effects. This program examines the characteristics of contemporary vall...(more details) |
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