[DOC] [TLE] Sand Dunes | Coastal Care [PAR] Types of Sand Dunes; Artificial Sand Dunes; Common Dune Forms ... of the dune 
after a storm, is evidence that waves have redistributed dune sand back to the 
beach. ... Beach debris slows down the wind or blocks it, causing sand to 
accumulate ... the vegetation keeps moving up and out, holding much of the sand 
in place. [DOC] [TLE] Sand dunes [PAR] However, when you know more about the dunes, they take on even greater 
significance. ... Before we describe sand dunes, we need to know what sand is. 
Sand ... Because quartz grains can form from a number of different rocks, the 
original source of the ... In some places in Michigan, dunes formed on top of the 
glacial drift. [DOC] [TLE] How Sand Dunes are Formed - DesertUSA [PAR] Once sand begins to pile up, ripples and dunes can form. ... Huge amounts of 
sand were needed to build Kelso Dune's delicate ... What made it stop 
accumulating? ... DesertUSA Newsletter -- We send articles on hiking, camping 
and places to explore, as well as animals, wildflower reports, plant information 
and much more. [DOC] [TLE] Features of Deposition - Geography AS Notes [PAR] In a coastal environment, deposition results in the accumulation of sediment 
along or ... Using this feature, you can see how many of Britain's spits have 
changed with time. ... As we've discussed, salt marshes form in places sheltered 
from the sea. ... As you move inland across a sand dune succession, the 
environmental... [DOC] [TLE] Requirements for Dune Formation - ClassZone [PAR] Dunes form where loose sediment accumulates. Requirements for dune 
formation are: Loose sediment, usually sand-sized. Environments with abundant 
loose... [DOC] [TLE] Creating a Dune - College of Charleston [PAR] Key Points will give you the main information you should know to teach the 
activity ... Sand continues to accumulate and a dune has begun to form! Seeds 
entrapped in the wrack have the perfect place to germinate  moist with a lot of 
nutrients... [DOC] [TLE] Michigan's Sand Dunes - State of Michigan [PAR] Once you learn about the complex, dynamic dune ecosystem, you will ... Before 
we try to describe a sand dune, we need to know what sand ... Many of the more 
recognizable dune forms are ridges or .... ancient lake shores where sand 
accumulated. Yet, the ... In some places in Michigan, dunes formed on top of the 
glacial... [DOC] [TLE] dune - National Geographic Society [PAR] Jan 28, 2011 ... ... or in a desert. Dunes form when wind blows sand into a sheltered area behind 
an obstacle. ... Dunes grow as grains of sand accumulate. ... Star dunes have 
pointed ridges and slipfaces on at least three sides. ... having to do with places 
and the relationships between people and their environments. [DOC] [TLE] Dune - Wikipedia [PAR] In physical geography, a dune is a hill of sand built by wind or the flow of water. 
Dunes occur in .... Parabolic dunes have loose sand and steep slopes only on 
their outer flanks. ... Dunes form where the beach is wide enough to allow for the 
accumulation of wind-blown sand, and where prevailing onshore winds tend to 
blow... [DOC] [TLE] How do parabolic dunes form? | Reference.com [PAR] Parabolic dunes tend to proliferate in places where wind blows predominantly ... 
Barchan dunes require free-flowing sand to form and are therefore not as 
common as parabolic dunes. ... As the wind blows over a sandscape, grains 
begin to accumulate in a ridge. ... How do you print an N400 citizenship form in 
PDF format? [DOC] [TLE] Understanding Wind Erosion [PAR] Exploring wind erosion and the formation of sand dunes; Comparing surface 
processes on ... at eroding and transporting loose material from high places to 
low places. ... They commonly form in dry Earth surface environments. ... You may 
wish to have them complete the first three questions on the worksheet as you 
lecture. [DOC] [TLE] Geology - Great Sand Dunes National Park & Preserve (U.S. ... [PAR] You may also learn about geological

Question: For a dune to form you need sand, a place for it to accumulate & this
Answer: Wind