Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 38, Problem 4TY
Soil organic matter provides the benefit of
- a. allowing water to percolate rapidly through soil.
- b. making soil softer in consistency.
- c. increasing the aluminum content of soil.
- d. causing minerals to be leached more rapidly from soil.
- e. none of the above.
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Cation 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 above
Soil pH affects availability of nutrients for root absorption. The following statements are true except*
a. Low pH results in an increase in Aluminum toxicity.
b. Low pH results to unavailability of major nutrient elements.
c. Toxic metals are more available in acidic soil.
d. Low pH results in slow activity of soil-inhabiting microorganisms.
The high acidity of the soil means less capacity to bind positively charged ions.
True or False?
Chapter 38 Solutions
Biology
Ch. 38.1 - Prob. 1CCCh. 38.1 - Prob. 2CCCh. 38.2 - Prob. 1CCCh. 38.2 - How might soil crusts influence the ecology and...Ch. 38.2 - Prob. 3CCCh. 38.2 - Prob. 1EQCh. 38.2 - Prob. 2EQCh. 38.3 - Prob. 1CSCh. 38.3 - Prob. 2CSCh. 38 - Which of the following substances can limit plant...
Ch. 38 - In what form do plants take up most soil minerals?...Ch. 38 - Prob. 3TYCh. 38 - Soil organic matter provides the benefit of a....Ch. 38 - Prob. 5TYCh. 38 - Which property is not characteristic of clay-rich...Ch. 38 - Prob. 7TYCh. 38 - Prob. 8TYCh. 38 - Prob. 9TYCh. 38 - Which plant uses a passive trap to obtain animal...Ch. 38 - Prob. 1CQCh. 38 - Prob. 2CQCh. 38 - Prob. 3CQCh. 38 - Prob. 1COQCh. 38 - Prob. 2COQ
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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
- Select the following characteristics that clay soils possess. I. Poor aeration. II. Poor drainage. III. Soil not compacted. IV. Good water retention. V. Mineral content is low. A. II, V. B. I, II, IV. C. III, IV, V. D. I, II, III, IV.arrow_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_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_forward
- When mineral nutrients are applied to the soil, which of the following may occur?Group of answer choices a. Taken in by the plant b. Leached below the root zone c. Tied up to colloids in the soil d) All of the abovearrow_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_forwardAvailable Nutrients occur in the soil generally in the form of:Group of answer choices A.) Ions (cations and anions) B.) Organic complexes C.) Molecular structures D.) Simple sugars.arrow_forward
- The rate at which molecules diffuse through the soil depends on the soil’s: Group of answer choices a. water content b. size and number of pores c. kinds of molecule d. temperature e) All of the abovearrow_forwardCamellia and azalea are plants that produce yellow leaves, which is considered an undesirable outcome, when they are grown on alkaline soil. Which of the statements below support the fact about camellia and azalea stated above? a. Loam soil is not advisable to be used in growing camellia and azalea because of its acidity. b. Camellia and azalea should not be planted in chalk soil. c. Camellia and azalea produced yellow leaves because they are planted in acidic soil. d. Camellia and azalea require chalk soil to counter the effect of the alkaline soil used.arrow_forwardFertile soil is one of the keys to good yield. (i) Explain the roles of clay and organic matter in contributing to soil fertility and cation exchange capacity (CEC). (ii) Name ONE (1) negative effect of low CEC and high CEC soils respectively. Suggest ways to improve low CEC and high CEC soils. (iii) Suggest ONE (1) suitable type of crops for high CEC soil, low CEC soil and loam soil respectively.arrow_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_forwardSelect all that are true regarding soil a. the most abundant element of soil is inorganic mater b. plants passively acquire cations by using ATP to pump H+ into the soil c. soil plays key roles in water regulation and buffering of pollutants d. soil is an essential source of carbon for plants e. plants use H+ from photosynthesis to acquire cations f. anions are unbound in the soil and freely travel into plant roots with water g. cation exchange is required because cations are bound to negatively charged soil particles h. H+ works well for the cation exchange because it is a small molecule with a strong charge 2. Select all that apply to plant nutrition a. green manure can restore minerals to soil but is to expensive for farmers to use b. mineral deficiencies cause symptoms like chlorosis, a browning and death of plant tissue c. fertilizers typically contain nitrogen, potassium, and phosphorus,…arrow_forwardWrite T on the blank provided if the statement is correct. If it is false, underline and replace the word(s) with the word(s) that will make the statement true. Calcium carbonate is highly soluble in water in which calcium element is easily release to correct soil pH. The degree of fineness of lime is not dependent to the speed of checking soil acidity. Carbon is released back to the atmosphere during decomposition of organic materials. Mineralization of nitrogen decreases if the water filled pore space is below 50%. Soil carbon mineralization increases as the moisture content of the soil increases to a certain level and may drop if soil is fully saturated with water. Nitrifying bacteria that obtain carbon from carbon dioxide prefer reduced zone to nitrify nitrogen to available form.arrow_forward
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