Sws3022 exam 2 - Study guides, Class notes & Summaries

SWS3022 Soil Taxonomy Study Guide with Complete Solutions What are the Soil Master Horizons? - Answer️️ -O A E B C R The O MASTER HORIZON - Answer️️ -Greater than 20% OM Organic horizon formed above the mineral soil. Derived from decomposition of plant and animal residues Range in thickness from absent to meters thick. The A MASTER HORIZON - Answer️️ -Topmost MINERAL horizon (topsoil) Subject to significant weathering Zone of gas and water exchange High in plant roots,...

SWS3022 Practice Questions and Answers | 100% Pass Dimensions of the Earth? - Answer️️ -D=8,000 C=25,000 What is soil? - Answer️️ -the upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles. The parameters related to soil composition for an idealized surface soil? - Answer️️ - 50% -Solid 50%-Pore Space 45%-Mineral 5%-organic matter Basic functions of soil in the environment? -...

SWS3022 Exam Questions and Answers | 100% Pass What are the important soil solution constituents of inorganic soils? - Answer️️ -can contain carbon, but are not based on carbon; simple - metals, chemical nutrients, acids - all ionic What are the important soil solution constituents of organic soils? - Answer️️ - compounds of carbon; dominated by C, H, and O; complex - covalently bonded - can be natural or synthetic How do ions differ from the elements in the periodic table? - A...

SWS3022 Lectures 15 Study Guide with Complete Solutions organic chemical - Answer️️ -also referred to as an organic compound, is defined as being constructed of molecules that possess carbon-based atoms. Specifically, it is composed of carbon atoms attached to hydrogen atoms, together with a variety of other elements from functional groups, such as oxygen, nitrogen, sulfur, etc. Usually, an organic chemical is covalently bonded, meaning that electrons are shared between atoms. This ch...

sws3022 UF exam 3 Study Guide with Complete Solutions Note the various forms of N - Answer️️ -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 - Answer️️ -it is not held by soil colloids and can be lost from the soil through leaching. However in well aerated soils (plenty of ox...

SWS3022 Lab Exam 1 Practice Questions and Answers | 100% Pass What are the components to Munsell Soil Color? - Answer️️ -Hue, Value, Chroma What does each component to the Munsell Soil Color indicate? - Answer️️ -Hue - Dominant spectra color on a given page Value - Light/dark (the lower the number, the darker the color) Chroma - Intensity/Brightness of color Say I have a munsell soil color of 10YR 5/6, which of these parts represents the hue, value, and chroma? - Answer️️ -Th...

SWS3022 Exam 3 Practice Questions and Answers | 100% Pass Be able to define an acid. - Answer️️ -Any substance that increases the hydrogen ion concentration in a solution. Know the two ions considered acids in soils. - Answer️️ -Hydrogen (H+) and Aluminum (Al3+). Understand how aluminum contributes to soil acidity - Answer️️ -Hydrolosis. Al(H2O)6 3+ = Al(H2O)5(OH) 2+ and H+ Understand the two basic types of soil acidity discussed in class. - Answer️️ -Active and exchange...

SWS3022 Exam 3 Practice Questions and Answers | 100% Pass What organisms are the most numerous in soils? - Answer️️ -Bacteria What organisms have the greatest biomass? - Answer️️ -Fungi What is the difference between aerobic and anaerobic heterotrophs? - Answer️️ - Aerobic use oxygen as electron acceptors. Anaerobic use nitrogen, sulfur, ironto accept electrons. How do aerobic conditions influence the decomposition of organic matter? - Answer️️ - Decomp is rapid due to ef...

SWS3022 Exam 1 Study Guide with Complete Solutions Dimensions of the Earth - Answer️️ -Diameter: 8000 mi Circumference: 25,000 mi What do the definitions of soil depend on? - Answer️️ -The definition of soil is dynamic because many specializations and disciplines view soil differently: ecological, geological, environmental, etc. Parameters related to soil composition for an idealized surface soil - Answer️️ -50% pore space and 45% particles, 5% OM Basic functions of soils in...