Weathering and soil - Study guides, Class notes & Summaries

___________ is comparatively soluble in soil solution and therefore easily weathered. a. Hematite b. Apatite c. Feldspar d. Mica e. Gypsum correct answer: E. Gymsum Quartz _____. a. weathers to form clay minerals b. is resistant to weathering c. is soluble in soil solution d. is a phosphorus bearing mineral e. is a major component of the clay fraction correct answer: B. is resistant to weathering A pot of soil that is 30 cm tall and which has been wetted until excess water ...

1. What are the commonly used soil classification systems in civil engineering? (choose two) Ans: AASHTO USCS 2. T/F Granular soils are gravel and sand, also called course-grained soils Ans: True 3. Which of the following soil types has the finest grain size? Ans: Clay 4. What is the opening size for No.4 sieve? Ans: 4.75mm 5. T/F Soil particles are the result of weathering of rocks and organic decomposition Ans: True 6. T/F The stability of any structure relies on the stabil...

AP Environmental Science Exam Review Questions with solutions 2024 abiotic Pertaining to factors or things that are nonliving. acid Any compound that releases hydrogen ions when dissolved in water. Also, a water solution that contains a surplus of hydrogen ions. A horizon a soil horizon; the layer below the O layer is called the A layer. The A layer is formed of weathered rock, with some organic material; often referred to as topsoil. alkaline a basic substance; chemica...

abiotic - Pertaining to factors or things that are nonliving. acid - Any compound that releases hydrogen ions when dissolved in water. Also, a water solution that contains a surplus of hydrogen ions. A horizon - a soil horizon; the layer below the O layer is called the A layer. The A layer is formed of weathered rock, with some organic material; often referred to as topsoil. alkaline - a basic substance; chemically, a substance that absorbs hydrogen ions or releases hydroxyl ions; in refer...

A soil with 25% _____ and 25% ______by volume is close to ideal -water; organic matter -Air; mineral matter -Air; water -Mineral matter; organic matter correct answer: Air; water Soil is a dynamic natural body having properties due to the combined effects of _______ and biota as modified by ________ acting on parent material over time. -climate; topography -Time; Weather -Topography; parent material -Biota; climate -Weather; topography correct answer: climate; topography A soil ...

SCSC 301 Questions and Answers Already Passed Which horizon is not part of the soil solum? C Organic matter in soil typically accounts for ____% or less of the soils total volume. 5% Pore space in soil may contain either _____ or _____ Air Water Soils are the result of ______ and biota acting on parent material over time as modified by ______ Climate Topography Though plants depend on soil for growth, which of the items below is found in soil, but not required for plant growth? Carbon dioxid...

Habitat degradation occurs when a. the quality of habitat is reduced. b. habitat is lost and converted to a different form. c. habitat is managed to increase the population of a particular species. d. people have a negative opinion of nature. a. the quality of habitat is reduced. Which of the following factors is NOT a characteristic of a species likely to become extinct? a. low reproductive rate b. small population sizes c. small habitat area d. generalized niche d. general...

abiotic - related to factors or things that are separate and independent from living things; nonliving acid - any compound that releases hydrogen ions when dissolved in water. Also, a water solution that contains a surplus of hydrogen ions air mass - enormous bodies of air that move as a unit A horizon - a soil horizon; the layer below the O horizon; formed of weathered rock, with some organic material; often referred to as topsoil alkaline - a basic substance; chemically, a substance tha...

List the possible phases or matter present in soil correct answer: 1. Gas 2. Liquid 3. Solid Define unit weight correct answer: Unit Weight- the weight of a unit volume of anything (soil) - Also called Total - Unit Weight Sometimes (incorrectly) called density - Unit weight of water is the weight of a unit volume of water Define Water Content correct answer: Water Content- how much water is in the soil Define Void Ratio correct answer: Void Ratio-how much air is in the soil ...

soil correct answers composed of minerals, organic matter, air, and water parent material correct answers geological base material for soil and is determines soil composition weathering correct answers the break down of rock through chemical, physical, or biological processes humus correct answers crumbly material from partially decomposed material formed from biological processes CLORPT correct answers stands for climate, organisms, rest/topography, parent material, time loam cor...