Sws 3022 Study guides, Class notes & Summaries

SWS 3022 Exam Questions with Correct Answers How temperature and Rainfall impact soil formation? - Answer-High temperatures and rainfall accelerate soil formation Why soils in Florida tend to be more highly developed than soils in the S.W United States? - Answer-Heat and rain fall. Why does water have such a high heat capacity relative to other common liquids like alcohol - Answer-When heat is added to water, the molecules speed up or vibrate more freely. This disturbs hydrogen bonds, but...

SWS 3022 Exam 2 Questions with Answers Know that primary minerals dominate the sand and silt fractions, while secondary minerals dominate the clay fraction. Also, know the basic difference in reactivity of primary vs. secondary minerals. - Answer-Primary= less reactive Know how texture generally affects overall porosity and pore size distribution. - Answer-Larger particles-> large pores, low porosity Clay- high water retention Know generally how texture affects water and gas movement ...

SWS 3022 Exam 1 Exam Questions with Answers If point A in a soil has a total potential energy of -100 cm, and point B has a total potential of -300 cm, and the distance between the points is 20 cm, and the hydraulic conductivity is 2 cm/hr, what is the total flow, Q, between the points? - Answer-20 cm/hr 300-100 = 200/20 = 10*2 = 20 Two points in the soil are both exactly 10 cm below the soil surface and are 20 cm apart. The capillary potential energy at point A is -200 cm and at point B i...

SWS 3022 Test Questions and Answers A soil has a porosity of 40%, a gravimetric water content of 40%, and a volumetric water content of 30%. Is the soil saturated? - Answer-no because volumetric water content is not more than porosity Water is difficult to evaporate compared to other liquids. - Answer-True Water's polarity is ultimately the result of oxygen's high electronegativity. - Answer-True Soil temperature is strongly dependent on water content. - Answer-True Atoms like oxy...

Know the dimensions of the earth. -:- Diameter: 8,000 mi Circumference: 25,000 mi Understand that definitions of soil depend strongly on the concerns of those making the definitions -:- Know the parameters related to soil composition for an idealized surface soil. -:- Reactive and porous 45% mineral particles 5% organic matter 50% pore space Be able to identify the basic functions of soils in the environment. 2 0 2 4 / 2 0 2 5 | © copyright | This work may not be copied for pr...

Which horizon closely resembles the parent material? -:- Horizon C Which horizon is the zone of eluviation? -:- Horizon E Which horizon is the uppermost mineral horizon? -:- Horizon A Which horizon has greater than 20% O.M., dark in color? -:- Horizon O Which horizon is the zone of illuviation? -:- Horizon B 2 0 2 4 / 2 0 2 5 | © copyright | This work may not be copied for profit gain | Excel! 2 | P a g e | G r a d e A + | 2 0 2 4 / 2 0 2 5 Refers to the measure of the degree o...

SWS 3022 Exam 1 Practice Questions and Answers | 100% Pass Which horizon closely resembles the parent material? - Answer️️ -Horizon C Which horizon is the zone of eluviation? - Answer️️ -Horizon E Which horizon is the uppermost mineral horizon? - Answer️️ -Horizon A Which horizon has greater than 20% O.M., dark in color? - Answer️️ -Horizon O Which horizon is the zone of illuviation? - Answer️️ -Horizon B Refers to the measure of the degree of lightness or darkness, to...

SWS 3022 Exam 1 Study Guide with Complete Solutions Know the dimensions of the earth. - Answer️️ -Diameter: 8,000 mi Circumference: 25,000 mi Understand that definitions of soil depend strongly on the concerns of those making the definitions - Answer️️ - Know the parameters related to soil composition for an idealized surface soil. - Answer️️ -Reactive and porous 45% mineral particles 5% organic matter 50% pore space Be able to identify the basic functions of soils in the ...

What are the Soil Master Horizons? -:- O A E B C R The O MASTER HORIZON -:- Greater than 20% OM Organic horizon formed above the mineral soil. Derived from decomposition of plant and animal residues 2 0 2 4 / 2 0 2 5 | © copyright | This work may not be copied for profit gain | Excel! 2 | P a g e | G r a d e A + | 2 0 2 4 / 2 0 2 5 Range in thickness from absent to meters thick. The A MASTER HORIZON -:- Topmost MINERAL horizon (topsoil) Subject to significant weathering Zo...

Note the various forms of N -:- 1. Ammonium (NH4+) cation in the soil solution and fixed in secondary clays 2. Nitrate (NO3-) anion in the soil solution 3. Organic N in the soil 4. Ammonia (NH3) gas (released to atmosphere) 5. NO, N2O, N2 gases (released to atmosphere) anion- nitrogen -:- it is not held by soil colloids and can be lost from the soil through leaching. However in well aerated soils (plenty of oxygen), most of the NH4+-N (applied for example as fertilizer) changes to the...