Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 38, Problem 5TY
Summary Introduction
Introduction: Leaching is the process by which inorganic ions, minerals, and nutrients are removed from different kinds of soil due to the percolation of water through the materials. The fertility of the soils can be reduced due to heavy rainfall because of the leaching of a large number of nutrients from the soil. These nutrients enhance the growth of aquatic plants and algae.
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fertilizers are necessary if the soil lacks one of the following nutrients:
a. calcium, carbon, potassium
b. nitrogen phosphorus, potassium
c. nitrogen, phosphorus, magnesium
d. nitrogen, calcium, magnesium
e. phosphorus, potassium, magnesium
A. 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.
Which of the following is a biotic factor? a. wind b. disease-causing microbe c. temperature d. soil particle size
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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- 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_forwardTerrestrial NPP a. generally increases with temperature. b. does not vary with precipitation. c. is high when soils are low in nutrients. d. is high in dry regions.arrow_forwardUse of synthetic fertilizers often leads to the contamination of groundwater with nitrates. Nitrate pollution is also a suspected cause of anoxic "dead zones" in the ocean. Which of the following processes is most likely to help reduce nitrate pollution? A. adding methanogens to the soil B. adding nitrifying bacteria to the soil C. adding denitrifying bacteria to the soil D. using ammonia instead of nitrate as a fertilizerarrow_forward
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- Which 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_forwardWhich of the following factors would explain why there is a decreasing trend of microbial population from top to bottom? A. There is a shift in the condition form oxic to anoxic. B. All statements are acceptable. C. The soil particles become larger and not weathered. D. There is a decrease in the available nutrients.arrow_forwardClay textured soils are indicated of high degree of weathering over-time 1. True 2. Falsearrow_forward
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