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They dug drainage ditches

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What is the OS symbol for marshy land?

Try http://www.ordnancesurvey.co.uk/oswebsite/products/ossitemap/pdf/OS%20Sitemap%20symbols.pdf


What is theMarshy area in southern US?

The marshy area in the southern US is commonly referred to as the Everglades in Florida. It is a vast wetland ecosystem known for its unique array of plant and animal species, including alligators and wading birds. The Everglades is a protected area and is recognized as an International Biosphere Reserve and World Heritage Site.


What are the similarities and differences between the coastal plains?

The similarities between coastal plains typically include flat terrain, proximity to the ocean, and fertile soil suitable for agriculture. Differences can arise in terms of climate, vegetation, geology, and human development. For example, the Gulf Coastal Plain in the United States is marked by humid subtropical climate and marshy wetlands, while the Atlantic Coastal Plain is characterized by sandy beaches and barrier islands.


Why did early Venetians abandon the mainland for the swampy lagoon islands?

Early Venetians abandoned the mainland for the swampy lagoon islands due to increasing invasion threats from barbarians and the Huns in the 5th century. The islands provided natural defenses and allowed for easier defense against potential attacks. Additionally, the marshy environment of the lagoon helped in supporting the early Venetians' maritime trade and fishing activities.


What terrain did the Aztecs live on?

The Aztecs lived on an island in Lake Texcoco in the Valley of Mexico, which is surrounded by mountains. The terrain was marshy and required the Aztecs to build chinampas, or floating gardens, to grow crops.