BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 37, Problem 3U
What proportion of the soil volume is occupied by air and water?
a. 10%
b. 25%
c. 50%
d. 75%
e. 90%
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We have 2 types of soils. One soil has bulk density of 2.75g/cm^3; second has bulk density of 1.5g/cm^3. What guess will we get from this information about the following soil properties for both soils?
a. Soil structure
b. Porosity
c. Root penetration
d. Presence of organic matter
Analyze each statement (A and B) whether they are true or false. Use the choices below in answering each item;
A statement A is true
B statement B is true
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A statement A is true
B statement B is true
C both A and B are true
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Chapter 37 Solutions
BIOLOGY
Ch. 37.1 - Prob. 1LOCh. 37.1 - Prob. 2LOCh. 37.1 - Prob. 3LOCh. 37.2 - Prob. 1LOCh. 37.2 - Prob. 2LOCh. 37.2 - Describe the goal of food fortification research.Ch. 37.3 - Prob. 1LOCh. 37.3 - Prob. 2LOCh. 37.3 - Prob. 3LOCh. 37.4 - Prob. 1LO
Ch. 37.4 - Explain the main effect on herbivores of a higher...Ch. 37.4 - Prob. 3LOCh. 37.5 - Prob. 1LOCh. 37.5 - Prob. 2LOCh. 37.5 - Prob. 3LOCh. 37 - Prob. 1IQCh. 37 - Prob. 2IQCh. 37 - Which of the following is NOT found in topsoil? a....Ch. 37 - Prob. 2UCh. 37 - What proportion of the soil volume is occupied by...Ch. 37 - Which of the following is a micronutrient? a....Ch. 37 - Prob. 5UCh. 37 - Prob. 6UCh. 37 - a C4 plant, the Calvin cycle occurs in a. the...Ch. 37 - One potential problem with using poplars to remove...Ch. 37 - Prob. 1ACh. 37 - If you wanted to conduct an experiment to...Ch. 37 - Which of the following would decrease nitrogen...Ch. 37 - Which of the following might you do to increase...Ch. 37 - Prob. 5ACh. 37 - Prob. 1SCh. 37 - Describe an experiment to determine the amount of...Ch. 37 - Prob. 3S
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- (a) Younger plant parts/materials decompose faster compared to older more lignified plant parts/materials; (b) Materials with narrow C:N ratio will decompose more easily compared to materials with wider C:N ratio. A. If statement A is true B. if statement B is true C. both statement A and B are true D. statement A nor B are truearrow_forwardName the following as soil forming processes: a. Soil erosion b. Formation of humus c. Weathering of sand d. Nutrients absorbed by plant roots e. deposition of organic matter f. Leaching of water along with dissolved ionsarrow_forwardWhich of the following strategies is most helpful for protecting the soil from water erosion? a Alley cropping with tilled soil b Planting crops in contour strips c Rotating crops between different fields d Using shelterbelts to separate crop fieldsarrow_forward
- Permanent Wilting point occurs at a water concentration when Group of answer choices a. The water attached to the soil particle can’t be pulled off by the plant. b. When the soil is saturated c. All free water has drained from the soil and that remaining is held to the soil particle against gravitational pull. d) All of the abovearrow_forwardCation Exchange capacity is: Group of answer choices a. The amount of cations that can be held by a given mass of soil. b. Affected by soil texture c. Affected by the amount of organic matter/Humus in a soil. d. Affected by the amount of clay in a given soil e) All of the abovearrow_forwardField Capacity occurs at a water concentration when; Group of answer choices a. The water attached to the soil particle can’t be pulled off by the plant. b. When the soil is saturated c) All free water has drained from the soil and that remaining is held to the soil particle against gravitational pull. d) All of the abovearrow_forward
- What fraction of the soil represents the most active? A. Clay B. Pore spaces C. Humus D. Soil colloidsarrow_forwardThe Casparian strip affectsa. how water and minerals move into the vascular cylinder.b. vascular tissue composition.c. how soil particles function.d. cation exchange.e. Both a and c are correct.arrow_forwardAnalyze each statement (A and B) whether they are true or false. Use the choices below in answering each item; A statement A is true B statement B is true C both A and B are true D neither A nor B are true (A) Soil moisture is the most variable physical property of the soil. (B) Soil moisture involves all the water that is in the soil including potential water that might arise from various biogeochemical reactions in the soil.arrow_forward
- A scientist investigating into the quality of soil in Potsin area determined the soil bulk density using graphical approach. Five soil samples from the farm were sampled and their respective masses and volumes determined in the laboratory. The masses (g) of soils sampled and their respective volumes (V) are shown in the table below. A. Give two reasons why bulk density measurement is vital during soil quality investigations. B. Describe how the soil were sampled for the bulk density measurement. C. Identify four meteorological instruments and their uses.arrow_forwardTo acquire immobile nutrients, the root system must be:Group of answer choices A.)Actively growing B.) in an environment with adaquate available moisture C.) In an unsaturated soil environment D.) All of the abovearrow_forwardA. The weathering and erosion in the area happens deep under the soil so the area looks unaffected B. Less sediment flows into the area because the vegetation soaks up all the water and makes its drier. C .the high amount of vegetation in the area causes more roots to hold the soil in place against weathering. D. The high amount of vegetation in the area causes an increase in oxygen causing stronger more stable soil.arrow_forward
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