list 3 ways rock may be broken down into soil?
607583
erosion,corrosion and abrasion
1171684
Erosion breaks up igneous and metamorphic rocks, and the particles build up to create sedimentary rocks.  \n\nHope this is helpful.
292725
I will give this question a stab and I caution that the answer may not be exactly correct. \n\n The weathering complex refers to the action of wind and rain on sculping the geography of the Earth or any other planet for that matter. The Grand Canyon is a prime example of this action. It was sculped--there is probably a better word to use here but I can't think of it--by the flow of the Colorado River. In this particular area of the country where it does not rain very frequently and there is sparce vegitation, when it does rain hard, the erosion can be severe. The same can be said of soil erosion caused by the wind. During the 1930's the mid-west became a dust bowl and millions of tons of soil were displaced by wind.  In some places when the wind blew, it was like night at mid day because of all the dusk in the air.  \n\nIf you have ever driven through the Appalachian Mountians and looked at where the road was cut through the mountians you would have noticed that the layers of sedamentary rock seemed to abrutly  terminate at one side of the mountain. It is like a giant hand came down and scooped out part of the mountain. That giant hand was the stream or river at the bottom of the mountain. It literally cut through the mountain during millions and millions of years. \n\nOne of the best examples of wind erosion in the U S can be found at Great Sand Dunes National Monument in southern Colorado.  There there are sand dunes hundreds of feet high cause by the wind carrying the particals of sand into that sheltered area. A lesser example of this are the sand dunes in Dunes State Park in Indiana along the south shore of Lake Michigan. And of course everyone has seen the sand dunes of the Sahara Desert in the movies.
815356
1) sandstone, shale, conglomerate (by size of clasts)\n2) mainly carbonates (limestone, dolomite)\n3) c\n4) b\n5) Not sure... maybe b, because it can be organic or non-organic?
799885
This is a great way to begin understanding the different forces that shape the land.  It is important to remember how the rocks came to be found, Metamorphic rocks from Michigan that may have been dug up from a deep quarry or found on the surface exposed by glacial action.  In N Carolina they could be sedimentary rocks exposed by water erosion.  In Florida they could very likely be calcium carbonate deposited by ancient coral reefs.  A simple understanding of these and other rock forming processes would make a prize winning 4th grade report.  Good Luck!
366249
Depends on the kind of rock.  Some of them probably won't dissolve easily -- you'd have to pulverize them first.
962499
There are many different sedimentary rocks but only three basic causes.\n\nFirst is where rock is weathered out and is washed down into valleys and rivers where it forms a mud and is then pressured to turn into rock.\n\nThe other is the sea floor where the same silt settles and becomes a thick layer over the years.  Then either the sea recedes or the land is thrust up leaving the mud high and dry as sedimentary rock.\n\nLastly we have limestone and chalk where sea creatures die, sink to the ocean floor and accumulate.  This then follows the same upthrust or ebb of the sea and is exposed as rock on the mainland.
109971
As the Earth buckled, deep cracks penetrated to the buried sandstone layer.\n\nErosion (wind and rain) wore away exposed rock layers and enlarged the surface cracks, isolating narrow sandstone walls, or fins. \n\nAlternating frosts and thawing caused crumbling and flaking of the porous sandstone and eventually cut through some of the fins.\n\nThe resulting holes were enlarged to arch proportions by rockfalls and weathering (again the effects of wind and rain).
121137
There are sevaral ways of finding microfossils. \n\nIf the sample is a limestone or similar material it can be dropped in acid and left for a few weeks. That will dissolve the limestone and leave the fossils. Then some lab monkey will spend weeks looking at the grit that is left under a dissecting microscope amicroscope with a pair of tweezers. I kid you not. Slowly separating out fossils from garbage.\n\nThe other way to process rock is to slice it cleanly and put the entire spcimen under the micorscope. When a fossil is spotted it can be either maked for later chemical extraction or very gently chipped out.\n\nThe other technique is to collect sediments such as clay or sand and seive them to remove unwanted material. The it's back to the dissection microcope with the tweezers to sort out the rubbish.
723318
Wearing away of rock by means of mechanical or chemical processes.\n\nMechanical weathering is the actual physical breaking apart of rock into smaller pieces.\n\nChemical weathering is the change of rock from one substance into a new or multiple new substances.\n\nMechanical weathering aids chemical & vice versa.
411596
The rock cycle is the continuous movement of rock from one type to another. These processes occur over long amounts of time. All rock started out as igneous. From there, rock can then become sedimentary, metamorphic, or igneous again in any order.\n\nIgneous --> Sedimentary:\nIgneous rocks break down through weathering processes. The broken down rock becomes sediments which are deposited by wind or water. Layers of sediment build up on top of each other. Pressure, along with dissolved minerals, help to "glue" the rock together.\n\nSedimentary --> Metamorphic ("change form"):\nIf the pressure is great & enough heat is applied, metamorphism can occur. This causes the rock to become more compact & dense. If too much heat is applied then the rock will melt. See below.\n\nMetamorphic --> Igneous:\nIf heat is applied to the point of melting, the rock will go though the igneous phase again.\n\n:)
708919
Holocene Soil Development on Till and Outwash Inferred from Lake-Sediment Geochemistry in Michigan and Wisconsin \nAuthors: Ewing H.A.1; Nater E.A.2\nSource: Quaternary Research, Volume 57, Number 2, March 2002, pp. 234-243(10)\n\nParent material. Few soils weather directly from the underlying rocks. These "residual" soils have the same general chemistry as the original rocks. More commonly, soils form in materials that have moved in from elsewhere. Materials may have moved many miles or only a few feet. Windblown "loess" is common in the Midwest. It buries "glacial till" in many areas. Glacial till is material ground up and moved by a glacier. The material in which soils form is called "parent material." In the lower part of the soils, these materials may be relatively unchanged from when they were deposited by moving water, ice, or wind.\n\nSediments along rivers have different textures, depending on whether the stream moves quickly or slowly. Fast-moving water leaves gravel, rocks, and sand. Slow-moving water and lakes leave fine textured material (clay and silt) when sediments in the water settle out.\n\nClimate. Soils vary, depending on the climate. Temperature and moisture amounts cause different patterns of weathering and leaching. Wind redistributes sand and other particles especially in arid regions. The amount, intensity, timing, and kind of precipitation influence soil formation. Seasonal and daily changes in temperature affect moisture effectiveness, biological activity, rates of chemical reactions, and kinds of vegetation.\n\nTopography. Slope and aspect affect the moisture and temperature of soil. Steep slopes facing the sun are warmer, just like the south-facing side of a house. Steep soils may be eroded and lose their topsoil as they form. Thus, they may be thinner than the more nearly level soils that receive deposits from areas upslope. Deeper, darker colored soils may be expected on the bottom land.\n\nBiological factors. Plants, animals, micro-organisms, and humans affect soil formation. Animals and micro-organisms mix soils and form burrows and pores. Plant roots open channels in the soils. Different types of roots have different effects on soils. Grass roots are "fibrous" near the soil surface and easily decompose, adding organic matter. Taproots open pathways through dense layers. Micro-organisms affect chemical exchanges between roots and soil. Humans can mix the soil so extensively that the soil material is again considered parent material.\n\nThe native vegetation depends on climate, topography, and biological factors plus many soil factors such as soil density, depth, chemistry, temperature, and moisture. Leaves from plants fall to the surface and decompose on the soil. Organisms decompose these leaves and mix them with the upper part of the soil. Trees and shrubs have large roots that may grow to considerable depths.\n\nTime. Time for all these factors to interact with the soil is also a factor. Over time, soils exhibit features that reflect the other forming factors. Soil formation processes are continuous. Recently deposited material, such as the deposition from a flood, exhibits no features from soil development activities. The previous soil surface and underlying horizons become buried. The time clock resets for these soils. Terraces above the active floodplain, while genetically similar to the floodplain, are older land surfaces and exhibit more development features.\n\nThese soil forming factors continue to affect soils even on "stable" landscapes. Materials are deposited on their surface, and materials are blown or washed away from the surface. Additions, removals, and alterations are slow or rapid, depending on climate, landscape position, and biological activity.\n\nWhen mapping soils, a soil scientist looks for areas with similar soil-forming factors to find similar soils. The colors, texture, structure, and other properties are d
444674
if you drop something in the water, it displaces water, and that displaced water moves other water, the rock going down in teh water pushes some up, which then pushes some down, and so on and so on.
225104
Lots of regular gravel and sand of different sized granuels. They use finer material thedeeper in the leech pit you go until you will eventually get clean water out the other side. (Hopefully)
814101
Saprolite ? -- a soft, earthy, clay-rich thoroughly decomposed rock formed in place by chemical weathering of igneous or metamorphic rocks\n\nC-horizon (soils) ? -- partially disintegrated parent material and mineral particles are in this horizon. C horizons may also be called "parent material".\n\nOverburden ? - engineering term for anything not bedrock\n\nOh, yeah, generally decomposed rocks are called soils.  Maybe I'm being too specific.
281360
its a rock...\n\npencils...
45660
Three types of rocks: igneous (formed by volcanic activity, like obsidian and pummice), metamorphic (formed by heat and pressure, like marble and quartzite) and sedementary (formed by accumulated depositing of loose material, packed hard into a rock, like sandstone and limestone).