CSS 210 quizzes
Given the following data, determine how much soil will be formed after 100,000 years of weathering:Weathering rate: 30 cm/20,000 yearsLimestone impurities: 8% a) 10.5 cm b) 12.0 cm c) 13.5 cm d) 15.0 cm e) 16.5 cm
b) 12.0 cm (100,000/20,000=5) (30*5=150*.08)
The "s" in the SOIL growth factors represents support for the plant. a) True b) False
a) True
The Bs horizon is considered an illuvial soil horizon. a) True b) False
a) True
The ability of a plant to absorb water and nutrients is related to the length and/or surface area-density of the roots. a) True b) False
a) True
The capacity of a plant to absorb water and nutrients is related to the length and/or surface area-density of the roots. a) True b) False
a) True
The hin Bhs stands for humus. a) True b) False
a) True
The particle density for a soil sample with a volume of particles equal to 125 cc and a weight of 300 grams is 2.4 g/cc. a) True b) False
a) True
The particle density for a soil sample with a volume of particles equal to 157cc and a weight of 144 grams is 0.92 g/cc. a) True b) False
a) True
The particle density for a soil sample with a volume of particles equal to 293 cc and a weight of 44 grams is 0.15 g/cc. a) True b) False
a) True
The translocation of clay, iron and aluminum oxides, and humus from the upper layers of a soil profile to lower layers is called eluviation. a) True b) False
a) True
Time is considered one of the five soil forming factors. a) True b) False
a) True
Topography is considered one of the five soil forming factors. a) True b) False
a) True
Vegetation is considered one of the five soil forming factors. a) True b) False
a) True
Calculate the bulk density of the following soil sample:Oven dry soil weight + core ring: 330 gramsCore ring weight: 48 gramsCore ring volume: 214 cc a) 1.29 g/cc b) 1.32 g/cc c) 1.34 g/cc d) 1.36 g/cc e) 1.38 g/cc
b) 1.32 g/cc
Determine the percent nutrient uptake by diffusion using the following data:Nutrient concentration in plant: 1,200 ppmNutrient concentration in soil solution: 3.0 ppmGrams of water uptake: 400 gramsGrams of plant growth: 1.0 gram a) 0% b) 25% c) 50% d) 75% e) 100%
a) 0%
Calculate the amount of soil formed from the weathering of 30 cm of the following limestone:Weathering rate: 30 cm/16,000 yearsLimestone impurities: 2% a) 0.6 cm b) 0.9 cm c) 1.2 cm d) 1.5 cm e) 1.8 cm
a) 0.6 cm
Calculate the bulk density of the following soil sample:Oven dry soil weight + core ring: 348 gramsCore ring weight: 45 gramsCore ring volume: 216 cc a) 1.40 g/cc b) 1.42 g/cc c) 1.44 g/cc d) 1.47 g/cc e) 1.49 g/cc
a) 1.40 g/cc
Determine the percent nutrient uptake by diffusion using the following data:Nutrient concentration in plant: 3,000 ppmNutrient concentration in soil solution: 6.0 ppmGrams of water uptake: 400 gramsGrams of plant growth: 1.0 gram a) 19% b) 21% c) 25% d) 35% e) 38%
a) 19%
Calculate the weight of an acre furrow slice for the following soil (plow depth = 8 inches):Oven dry soil weight + core ring: 312 gramsCore ring weight: 43 gramsCore ring volume: 220 cc a) 2,215,699 pounds b) 2,446,330 pounds c) 2,492,661 pounds d) 2,538,994 pounds e) 2,585,326 pounds
a) 2,215,699 pounds
Calculate the weight of an acre furrow slice for the following soil (plow depth = 8 inches):Oven dry soil weight + core ring: 312 gramsCore ring weight: 47 gramsCore ring volume: 216 cc a) 2,223,173 pounds b) 2,586,012 pounds c) 2,633,202 pounds d) 2,680,392 pounds e) 2,727,582 pounds
a) 2,223,173 pounds
Calculate the amount of soil formed from the weathering of 30 cm of the following limestone:Weathering rate: 30 cm/12,000 yearsLimestone impurities: 10% a) 3.0 cm b) 3.2 cm c) 3.9 cm d) 4.2 cm e) 4.5 cm
a) 3.0 cm
Given the following data, determine how much soil will be formed after 100,000 years of weathering:Weathering rate: 30 cm/16,000 yearsLimestone impurities: 2% a) 3.8 cm b) 5.6 cm c) 7.5 cm d) 9.4 cm e) 11.3 cm
a) 3.8 cm
Determine the percent nutrient uptake by diffusion using the following data:Nutrient concentration in plant: 2,400 ppmNutrient concentration in soil solution: 3.0 ppmGrams of water uptake: 400 gramsGrams of plant growth: 1.0 gram a) 49% b) 53% c) 58% d) 63% e) 68%
a) 49%
Excluding the roots hairs, what was the total length of the wheat roots grown in one acre? a) 5830 miles b) 5990 miles c) 6130 miles d) 6340 miles e) 6780 miles
a) 5830 miles
What is the weight of the following soil per cubic foot?Oven dry soil weight + core ring: 312 gramsCore ring weight: 47 gramsCore ring volume: 216 cc a) 77 pounds b) 79 pounds c) 81 pounds d) 82 pounds e) 83 pounds
a) 77 pounds
What is the weight of the following soil per cubic foot?Oven dry soil weight + core ring: 342 gramsCore ring weight: 44 gramsCore ring volume: 216 cc a) 86 pounds b) 89 pounds c) 90 pounds d) 92 pounds e) 93 pounds
a) 86 pounds
Which of the following is NOT a major process of soil formation? a) acidification b) addition c) transformation d) loss e) all are major processes of soil formation
a) acidification
12 inches of parent material would be produced by the weathering of 1 foot of sandstone. a) True b) False
a) True
A layer of soil that is 2-inch-thick, has a bulk density of 1.2 g/cc, and would cover an area 2,000 ft2 would weigh approximately 25,000 pounds. a) True b) False
a) True
A soil ped is the combination or arrangement of the soil particles into units. a) True b) False
a) True
A vertical section of soil consisting of horizons is called a soil profile. a) True b) False
a) True
An acre furrow slice of soil that is plowed 9 inches deep, has a bulk density of 1.2 g/cc, would weigh approximately 2,450,250 pounds. a) True b) False
a) True
Bulk density is commonly expressed as g/cc. a) True b) False
a) True
Bulk density is the mass per unit volume of oven dry soil. a) True b) False
a) True
Bulk density samples are obtained by driving a metal core ring into the soil. a) True b) False
a) True
Germination of seeds results in the development of shoots that grow upward and roots that grow downward. a) True b) False
a) True
Layers within the soil are called horizons. a) True b) False
a) True
Plants begin to establish after the mineral in the soil weather. a) True b) False
a) True
Roots grow in the path of least resistance. a) True b) False
a) True
Roots grow into moist soil. a) True b) False
a) True
The "L" in the SOIL growth factors represents liquids. a) True b) False
a) True
Calculate the percent nutrient uptake by mass flow given the following data:Nutrient concentration in plant: 1,000 ppmNutrient concentration in soil solution: 1.0 ppmGrams of water uptake: 500 gramsGrams of plant growth: 1.0 gram a) 46% b) 50% c) 61% d) 74% e) 86%
b) 50%
A layer of soil that is parallel to the soil surface is called a structure. a) True b) False
b) False
A vertical section of soil consisting of horizons is called a layer. a) True b) False
b) False
A vertical section of soil consisting of horizons is called a pedon. a) True b) False
b) False
Approximately 25% of the total amount of nutrients that a plant absorbs comes from the root interception a) True b) False
b) False
Bulk density is commonly expressed as cc/lbs. a) True b) False
b) False
Bulk density is commonly expressed as g/lbs. a) True b) False
b) False
Bulk density is the mass of soil particles. a) True b) False
b) False
If a soil had an oven dry weight of 180 grams and a volume of 150 cc, the bulk density would be 1.1 g/cc. a) True b) False
b) False
Layers in the soil, which are generally parallel to the soil surface are called profiles. a) True b) False
b) False
Layers within the soil are called pedons. a) True b) False
b) False
Organic soil (muck) typically has a higher bulk density than mineral soils. a) True b) False
b) False
Plant growth and the formation of humus has the greatest effect on the E horizon. a) True b) False
b) False
Roots grow into dry soil. a) True b) False
b) False
Roots tend to grow in a path where the soil is compacted. a) True b) False
b) False
Soil layers which are vertical are called horizons. a) True b) False
b) False
The "i" in the SOIL growth factors represents ions to destroy old tissue. a) True b) False
b) False
The "l" in the SOIL growth factors represents longevity of the soil. a) True b) False
b) False
The "o" in the SOIL growth factors represents oxygen for photosynthesis. a) True b) False
b) False
The "s" in the SOIL growth factors represents structure for the plant. a) True b) False
b) False
The Bw horizon is considered an eluvial soil horizon. a) True b) False
b) False
The E horizon is considered an illuvial soil horizon. a) True b) False
b) False
The amount of nutrient moved by diffusion to roots is directly related to the nutrient concentration in the soil solution and the amount of water moved. a) True b) False
b) False
The capacity of a plant to absorb water and nutrients is inversely related to the length and/or surface area-density of the roots. a) True b) False
b) False
The equation for uptake is equal to the following: uptake=availability / root length. a) True b) False
b) False
The equation for uptake is equal to the following: uptake=availability / surface area-density of roots a) True b) False
b) False
The particle density for a soil sample with a volume of particles equal to 125 cc and a weight of 300 grams is 0.4 g/cc. a) True b) False
b) False
The particle density for a soil sample with a volume of particles equal to 293 cc and a weight of 44 grams is 1.15 g/cc. a) True b) False
b) False
The particle density for a soil sample with a volume of particles equal to 29cc and a weight of 44 grams is 0.52 g/cc. a) True b) False
b) False
The particle density for a soil sample with a volume of particles equal to 493cc and a weight of 194 grams is 0.5 g/cc. a) True b) False
b) False
The particle density for a soil sample with a volume of particles equal to 57cc and a weight of 44 grams is 1.52 g/cc. a) True b) False
b) False
The translocation of clay, iron and aluminum oxides, and humus from the upper layers of a soil profile to lower layers is called illuviation. a) True b) False
b) False
With constant leaching, the soil surface takes on an acidic reaction and the rate of mineral weathering and the translocation of colloids increase. a) True b) False
b) False
Calculate the amount of soil formed from the weathering of 10 cm of the following limestone:Weathering rate: 30 cm/20,000 yearsLimestone impurities: 9% a) 0.7 cm b) 0.8 cm c) 0.9 cm d) 1.0 cm e) 1.1 cm
c) 0.9 cm
Calculate the bulk density of the following soil sample:Oven dry soil weight + core ring: 318 grams+Core ring weight: 42 grams+Core ring volume: 218 cc a) 1.17 g/cc b) 1.24 g/cc c) 1.27 g/cc d) 1.29 g/cc e) 1.31 g/cc
c) 1.27 g/cc
Calculate the bulk density of the following soil sample:Oven dry soil weight + core ring: 348 gramsCore ring weight: 47 gramsCore ring volume: 218 cc a) 1.33 g/cc b) 1.36 g/cc c) 1.38 g/cc d) 1.40 g/cc e) 1.46 g/cc
c) 1.38 g/cc
Calculate the weight of an acre furrow slice for the following soil (plow depth = 8 inches):Oven dry soil weight + core ring: 336 gramsCore ring weight: 47 gramsCore ring volume: 220 cc a) 2,131,658 pounds b) 2,277,990 pounds c) 2,380,435 pounds d) 2,844,785 pounds e) 2,891,117 pounds
c) 2,380,435 pounds
Calculate the weight of an acre furrow slice for the following soil (plow depth = 8 inches):Oven dry soil weight + core ring: 354 gramsCore ring weight: 46 gramsCore ring volume: 216 cc a) 2,174,772 pounds b) 2,397,466 pounds c) 2,583,915 pounds d) 2,991,846 pounds e) 3,039,036 pounds
c) 2,583,915 pounds
Given the following, determine the weight for a volume of soil 100 ft by 50 ft by 6 inches deep:Oven dry soil weight + core ring: 330 gramsCore ring weight: 48 gramsCore ring volume: 214 cc a) 201,196 pounds b) 204,841 pounds c) 205,570 pounds d) 207,131 pounds e) 209,776 pounds
c) 205,570 pounds
Calculate the nutrient concentration ratio given the following data:Nutrient concentration in plant: 500 ppmNutrient concentration in soil solution: 0.1 ppmGrams of water uptake: 500 gramsGrams of plant growth: 1.0 gram a) 3,000 b) 4,000 c) 5,000 d) 6,000 e) 7,000
c) 5,000
What is the weight of the following soil per cubic foot?Oven dry soil weight + core ring: 372 gramsCore ring weight: 45 gramsCore ring volume: 220 cc a) 90 pounds b) 91 pounds c) 93 pounds d) 94 pounds e) 96 pounds
c) 93 pounds
What are layers within the soil called? a) profiles b) peds c) horizons d) parent materials e) none of the above
c) horizons
Which of the following is NOT one of the important growth factors that the soil provides for plants? a) support b) oxygen c) nitrogen d) ions e) liquids
c) nitrogen
Calculate the bulk density of the following soil sample:Oven dry soil weight + core ring: 366 gramsCore ring weight: 48 gramsCore ring volume: 216 cc a) 1.36 g/cc b) 1.42 g/cc c) 1.44 g/cc d) 1.47 g/cc e) 1.49 g/cc
d) 1.47 g/cc
Calculate the weight of an acre furrow slice for the following soil (plow depth = 8 inches):Oven dry soil weight + core ring: 300 gramsCore ring weight: 45 gramsCore ring volume: 216 cc a) 2,009,219 pounds b) 2,054,078 pounds c) 2,102,394 pounds d) 2,139,280 pounds e) 2,291,632 pounds
d) 2,139,280 pounds
Calculate the weight of an acre furrow slice for the following soil (plow depth = 8 inches):Oven dry soil weight + core ring: 378 gramsCore ring weight: 46 gramsCore ring volume: 220 cc a) 2,237,449 pounds b) 2,483,781 pounds c) 2,630,113 pounds d) 2,734,618 pounds e) 3,125,919 pounds
d) 2,734,618 pounds
Given the following, determine the weight for a volume of soil 100 ft by 50 ft by 6 inches deep:Oven dry soil weight + core ring: 378 gramsCore ring weight: 46 gramsCore ring volume: 220 cc a) 224,782 pounds b) 228,327 pounds c) 231,873 pounds d) 235,418 pounds e) 239,778 pounds
d) 235,418 pounds
Calculate the amount of soil formed from the weathering of 30 cm of the following limestone:Weathering rate: 30 cm/10,000 yearsLimestone impurities: 12% a) 2.7 cm b) 3.0 cm c) 3.3 cm d) 3.6 cm e) 7.5 cm
d) 3.6 cm
Given the following data, what is the plant's transpiration ratio?Nutrient concentration in plant: 3,200 ppmNutrient concentration in soil solution: 8.0 ppmGrams of water uptake: 400 gramsGrams of plant growth: 1.0 gram a) 100 b) 200 c) 300 d) 400 e) 500
d) 400
What is the weight of the following soil per cubic foot?Oven dry soil weight + core ring: 306 gramsCore ring weight: 44 gramsCore ring volume: 214 cc a) 70 pounds b) 72 pounds c) 74 pounds d) 76 pounds e) 79 pounds
d) 76 pounds
Which of the following are major processes of soil formation? a) additions b) transformations c) acidification d) both 1 and 2 e) all of the above
d) both 1 and 2
Bulk density is expressed as which of the following? a) grams/cubic centimeters b) pounds/cubic foot c) tons/cubic centimeters d) both 1 and 2 e) all of the above
d) both 1 and 2
Calculate the bulk density of the following soil sample:Oven dry soil weight + core ring: 300 gramsCore ring weight: 47 gramsCore ring volume: 218 cc a) 1.06 g/cc b) 1.08 g/cc c) 1.11 g/cc d) 1.13 g/cc e) 1.16 g/cc
e) 1.16 g/cc
Calculate the amount of soil formed from the weathering of 10 cm of the following limestone:Weathering rate: 30 cm/18,000 yearsLimestone impurities: 12% a) 0.2 cm b) 0.3 cm c) 0.6 cm d) 0.9 cm e) 1.2 cm
e) 1.2 cm
Given the following data, determine how much soil will be formed after 100,000 years of weathering:Weathering rate: 30 cm/12,000 yearsLimestone impurities: 4% a) 2.0 cm b) 4.0 cm c) 6.0 cm d) 8.0 cm e) 10.0 cm
e) 10.0 cm
Given the following, determine the weight for a volume of soil 100 ft by 50 ft by 6 inches deep:Oven dry soil weight + core ring: 312 gramsCore ring weight: 45 gramsCore ring volume: 214 cc a) 178,247 pounds b) 180,342 pounds c) 184,430 pounds d) 188,075 pounds e) 194,636 pounds
e) 194,636 pounds
Calculate the weight of an acre furrow slice for the following soil (plow depth = 8 inches):Oven dry soil weight + core ring: 360 gramsCore ring weight: 41 gramsCore ring volume: 218 cc a) 2,421,261 pounds b) 2,468,018 pounds c) 2,514,775 pounds d) 2,561,532 pounds e) 2,651,645 pounds
e) 2,651,645 pounds
Bulk density is expressed as which of the following? a) kilograms/hectare layer b) pounds/acre furrow slice c) pounds/cubic foot d) grams/cubic centimeter e) all of the above
e) all of the above
What is the horizon designation for layer 1 of this Inceptisol: a) E b) C c) Bw d) Bhs e) Bs f) A
f) A
