Soil formation and classification
Quiz by edel kinsella
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60 questions
Show answers
- Q1What is the process by which bacteria, fungi, and lichens dissolve minerals in rocks to release nutrients?LeachingRock decompositionWeatheringErosion30s
- Q2What are the three main types of rocks that contribute to soil formation?Quartz, sandstone and limestoneGranite, marble and gneissIgneous, sedimentary and metamorphicSandstone, limestone and shale30s
- Q3Which type of rock solidifies when magma cools and when lava solidifies?Metamorphic rockSedimentary rockQuartzIgneous rock30s
- Q4What type of rocks are formed from the accumulation and compaction of layers of sediments over millions of years?Sedimentary rockIgneous rockQuartzMetamorphic rock30s
- Q5How are metamorphic rocks formed?By the cooling of lavaBy the accumulation and compaction of layers of sedimentsWhen heat or pressure bring about a change in igneous or sedimentary rockThrough the solidification of magma30s
- Q6What type of soil profile is a vertical section through a soil that shows all of the soil horizons?Leaching profileSoil profileRock formation profileWeathering profile30s
- Q7What type of peats develop in areas of high rainfall and low evaporation in anaerobic conditions along the West Coast of Ireland?Minerotrophic peatsRaised bogsBlanket peatsBasin peats30s
- Q8What percentage of soil consists of mineral matter, influencing soil pH and texture?80%45%25%60%30s
- Q9What type of weathering process is caused by the expansion and contraction of minerals in rock due to temperature changes?OxidationHeating and coolingActivity of rootsGrinding action30s
- Q10What is the main process by which roots of trees contribute to rock breakdown?OxidationGrinding actionHeating and coolingActivity of roots30s
- Q11Which type of rock is formed when magma cools and solidifies?Igneous rockMetamorphic rockSedimentary rockMarble30s
- Q12What is the process where layers of sediments solidify to form rock over millions of years?Gneiss formationIgneous rock formationMetamorphic rock formationSedimentary rock formation30s
- Q13Which type of rock is formed when heat or pressure cause a change in igneous or sedimentary rock?GneissMetamorphic rockSedimentary rockIgneous rock30s
- Q14What is the vertical section through a soil that shows all of the soil horizons called?Soil profileB horizonSubsoilTopsoil30s
- Q15What is the main component of soil that consists of partially decomposed plant material?Iron panHumusIlluviationLeaching30s