
Soil
Quiz by Traci Deal
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20 questions
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- Q1What is the name of a soil that is: 30% Sand 10% Silt 60% ClaySandy loamSilt loamClaySand60s
- Q2What is the name of a soil that is: 85% Sand 10% Silt 5% ClayLoamy sandSandSilt loamSandy loam60s
- Q3Identify the soil horizon: Consists of topsoil (mostly sand and some clay) rich in humus.A HorizonB HorizonC HoriozonO horizon30s
- Q4Identify the soil horizon: Deepest layer; consists of broken and solid, unweathered bedrock.R HorizonB HorizonA HorizonC Horizon30s
- Q5Identify the soil horizon: Subsoil reddish brown in color; made mostly of clay; rich in minerals and nutrientsC HorizonO HorizonB HorizonA Horizon30s
- Q6What is a cross section in which layers (a.k.a. horizons) of soil and bedrock can be seen.soil profilesoil sectionsoil picturesoil model30s
- Q7Which of the following best describes soil erosion?the breakdown of soilthe improvement of soilthe addition of soilthe movement of soil by wind or water30s
- Q8What effect did over plowing and cutting down trees have in the Great Plains during the 1930’s?It was a primary cause of the Dust BowlFarmers had a great harvestIt increased soil fertilityIt had little effect30s
- Q9Decayed organic material in soil is called______.HumusSiltClayLitter30s
- Q10Topsoil which contains the HUMUS is the soil layer best for growing plants.TrueFalse30s
- Q11Soil's one of the Earth’s most valuable resources. Everything on Earth depends on soil somehow.TrueFalse30s
- Q12Which of the following is NOT one of the 4 major components of soil?IronOrganic matterMineral matterWater30s
- Q13Soils' main component isAirMineralsWaterOrganic matter30s
- Q14The 3 categories of soil particles aresilt, clay, rocksand, rock, clayclay, sand, siltsilt, rock, sand30s
- Q15Silt particles are larger than clay particlesTrueFalse30s