CK12 Earth Science
The next soil horizon is thesubsoil,which is called the B horizon. This is the region where soluble minerals and clays accumulat ...
Types of Soils If we were to talk to soil scientists, you would learn that there are thousands of types of soil. Soil scientists ...
minerals are present here but fewer clay minerals are produced. With lower rainfall, there is also less vegetation here, so the ...
Figure 9.12: A laterite is the type of thick, nutrient poor soil that forms in the rainforest. ( 3 ) ...
Soil Conservation Soil is only a renewable resource if we carefully manage the ways in which we use soil. There are natural cycl ...
as well as improving its ability to hold onto water and nutrients (Figure9.13). Inorganic fertilizer can also temporarily increa ...
Review Questions Describe at least two ways in which soil is a living resource. Name two factors that influence soil formation. ...
soil horizon An individual layer of a complete soil profile; examples include A, B & C horizons. soil profile The entire set ...
(9) http: //upload.wikimedia.org/wikipedia/commons/0/0b/Forest_Osaka_Japan.jpg. CC-BY-SA. (10) http://www.nps.gov/archive/deto/t ...
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Chapter 10 Erosion and Deposition 10.1 Water Erosion and Deposition Lesson Objectives Describe how surface rivers and streams p ...
Figure 10.1: As rivers and streams move towards the ocean, they carry weathered materials. ( 29 ) ...
that the stream carries. As groundwater leaches through layers of soil and rock, minerals dissolve and are carried away. Groundw ...
but then it settles back down to the stream bed because it is too heavy to remain suspended in the water. This is calledsaltatio ...
Figure 10.3: Here a stream can be seen actively eroding its outer banks along a meander. ( 48 ) Figure 10.4: This stream has dep ...
velocity of the stream’s flow and causes the stream to drop off much of its load. The farmers who use the floodplain areas aroun ...
be dropped off are the coarsest sediments and these form sloped layers called foreset beds that make up the front edge of the de ...
Figure 10.7: This satellite photo of an alluvial fan in Iran show the typical fan shape of these deposits. The mountains in this ...
Formation of Caves As groundwater moves through spaces between mineral grains, it works to dissolve and carry away different ele ...
Asinkholecould form if the roof of an underground cave collapses. Some sinkholes are large enough to swallow up a home or severa ...
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