OKSTATE SOIL 1113 EXAM 2 WITH COMPLETE SOLUTIONS 100%
VERIFIED!!!! ALREADY GRADED A+
production function of soil - (ANSWER)- Soil acts primarily as a medium for the growth of natural
vegetation
- soil assures the supply of foods, feeds, fiber, fuel and various raw material
ecological regulator - (ANSWER)soil acts as a buffer, filter and transformer of various substances in or
that are added to the soil
habitat and living space - (ANSWER)- Soil is a habitat for a multitude of flora and fauna
- The largest quantity and diversity of organisms on the earth is in soil
engineering function - (ANSWER)- support of structures
- raw material for structures
cultural function - (ANSWER)provides spiritual uplift, scenic views, subject and medium for the art and
outdoor recreation opportunities
functions of the soil - (ANSWER)- production
- ecological regulator
- habitat and living space
- engineering
- cultural
land and food security - (ANSWER)The increasing population exerts continued pressure on the
production function of the soil
food security - (ANSWER)food security is achieved when enough food is produced to supply the daily
nutrient needs to meet the requirements for normal growth of humans in an area, country, or region
,OKSTATE SOIL 1113 EXAM 2 WITH COMPLETE SOLUTIONS 100%
VERIFIED!!!! ALREADY GRADED A+
solid waste - (ANSWER)- 4.5lbs/person/day
- solids are decomposed
- plant nutrients are recycled
- gasses are emitted to atmosphere (CO2, CH4, N2O)
wastewater - (ANSWER)80 gal/person/day
- soil stores water for plant and microbial use
- purifies it before reaches groundwater
groundwater - (ANSWER)the water found underground in the cracks and spaces in soil, sand and rock
water table - (ANSWER)the upper boundary, or surface, of groundwater
treatment of wastes - (ANSWER)Pollutants like excess plant nutrients, heavy metals, pesticides, and
pathogenic bacteria are treated by the soil
to meet growing global food demands, greater quantities of irrigation water would be needed -
(ANSWER)puts pressure on the water purification function of the soil
how much land can be used for food and fiber for human use - (ANSWER)12%
what is needed to sustain the human population at an acceptable level - (ANSWER)1 acre of crop
and/person
what can we do so that the soil will continue to preform its broad functions - (ANSWER)We must use the
soil for the correct purpose in the correct way
early humans - (ANSWER)- paleolithic period
, OKSTATE SOIL 1113 EXAM 2 WITH COMPLETE SOLUTIONS 100%
VERIFIED!!!! ALREADY GRADED A+
- foraging and hunting
- periodically settled only to move later
- Did not have lasting impact on the land
neolithic period - (ANSWER)- Raised crops and livestock
- settled in one area
- able to develop a cultural around the site and soil conditions around them
historical perspective - (ANSWER)- irrigation that watered the land that supported Babylon was
permitted to fill with silt
- The Dust Bowl (biggest drought)
what is soil composed of - (ANSWER)45% mineral matter
25% air
25% water
5% organic material
what makes up the solid portion of the soil - (ANSWER)Minerals and animals
solid portion key fact - (ANSWER)only particles with an effective diameter of 2.0 mm or less are
considered soil particles
inorganic fraction - (ANSWER)- sand = .05-2.0 mm
- silt = .002-.05 mm
- clay = <.002 mm
organic fraction - (ANSWER)- partially decomposed plant and animal matter
VERIFIED!!!! ALREADY GRADED A+
production function of soil - (ANSWER)- Soil acts primarily as a medium for the growth of natural
vegetation
- soil assures the supply of foods, feeds, fiber, fuel and various raw material
ecological regulator - (ANSWER)soil acts as a buffer, filter and transformer of various substances in or
that are added to the soil
habitat and living space - (ANSWER)- Soil is a habitat for a multitude of flora and fauna
- The largest quantity and diversity of organisms on the earth is in soil
engineering function - (ANSWER)- support of structures
- raw material for structures
cultural function - (ANSWER)provides spiritual uplift, scenic views, subject and medium for the art and
outdoor recreation opportunities
functions of the soil - (ANSWER)- production
- ecological regulator
- habitat and living space
- engineering
- cultural
land and food security - (ANSWER)The increasing population exerts continued pressure on the
production function of the soil
food security - (ANSWER)food security is achieved when enough food is produced to supply the daily
nutrient needs to meet the requirements for normal growth of humans in an area, country, or region
,OKSTATE SOIL 1113 EXAM 2 WITH COMPLETE SOLUTIONS 100%
VERIFIED!!!! ALREADY GRADED A+
solid waste - (ANSWER)- 4.5lbs/person/day
- solids are decomposed
- plant nutrients are recycled
- gasses are emitted to atmosphere (CO2, CH4, N2O)
wastewater - (ANSWER)80 gal/person/day
- soil stores water for plant and microbial use
- purifies it before reaches groundwater
groundwater - (ANSWER)the water found underground in the cracks and spaces in soil, sand and rock
water table - (ANSWER)the upper boundary, or surface, of groundwater
treatment of wastes - (ANSWER)Pollutants like excess plant nutrients, heavy metals, pesticides, and
pathogenic bacteria are treated by the soil
to meet growing global food demands, greater quantities of irrigation water would be needed -
(ANSWER)puts pressure on the water purification function of the soil
how much land can be used for food and fiber for human use - (ANSWER)12%
what is needed to sustain the human population at an acceptable level - (ANSWER)1 acre of crop
and/person
what can we do so that the soil will continue to preform its broad functions - (ANSWER)We must use the
soil for the correct purpose in the correct way
early humans - (ANSWER)- paleolithic period
, OKSTATE SOIL 1113 EXAM 2 WITH COMPLETE SOLUTIONS 100%
VERIFIED!!!! ALREADY GRADED A+
- foraging and hunting
- periodically settled only to move later
- Did not have lasting impact on the land
neolithic period - (ANSWER)- Raised crops and livestock
- settled in one area
- able to develop a cultural around the site and soil conditions around them
historical perspective - (ANSWER)- irrigation that watered the land that supported Babylon was
permitted to fill with silt
- The Dust Bowl (biggest drought)
what is soil composed of - (ANSWER)45% mineral matter
25% air
25% water
5% organic material
what makes up the solid portion of the soil - (ANSWER)Minerals and animals
solid portion key fact - (ANSWER)only particles with an effective diameter of 2.0 mm or less are
considered soil particles
inorganic fraction - (ANSWER)- sand = .05-2.0 mm
- silt = .002-.05 mm
- clay = <.002 mm
organic fraction - (ANSWER)- partially decomposed plant and animal matter
