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:
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Which of the following statements is NOT as description of soil?
A. Varying nutritional content.
B. Phototropic microbes are found only on the top few centimeters.
C. A homogenous layer of organic and inorganic material.
D. The area around the plant soil usually has the highest microbial populations.
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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- 1. Which of the following soil textures would be the best for lining the basin of a fish pond (providing an impermeable layer at the bottom so that water does not leak out)? A. silty soils, with rock particle sizes between 0.02 and 0.002 millimeters B. loamy soils, with intermediate drainage of water C. coarse soils, with rock particle sizes between 2.0 and 0.02 millimeters D. sandy soils, with very rapid drainage of water E. clay soils, with rock particle sizes less than 0.002 millimetersarrow_forwardA soil consists of layers called ________ that taken together are called a ________. a. soil profiles : horizon b. horizons : soil profile c. horizons : humus d. humus : soil profilearrow_forwardSelect 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_forward
- Terrestrial 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_forwardPesticides vary in terms of their persistence in soils. Give three possible reasons for the existence of such variation.arrow_forwardFor which of the following problems would growing and maintaining cover crops be an appropriate solution? Erosion is thinning the soil on a farm. The organic matter and nutrients in the soil on a farm are being depleted. The soil on a farm is becoming arid due to decreased water-carrying capacity. a I and II only b I and III only c II and III only d I, II, and IIIarrow_forward
- 12. Which of the following soil textures would be the best for housing construction, or to support a dry forest habitat (favored by oak trees and white birch trees)? A. silty soils, with rock particle sizes between 0.02 and 0.002 millimeters B. loamy soils, with intermediate drainage of water C. coarse soils, with rock particle sizes between 2.0 and 0.02 millimeters D. clay soils, with poor drainage of water E. fine soils, with rock particle sizes less than 0.002 millimetersarrow_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_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
- 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.arrow_forwardClay textured soils are indicated of high degree of weathering over-time 1. True 2. Falsearrow_forwardThe layer of soil that is closest to the surface is known as the ______________ horizon. Question 7 options: a. surface b. organic c. substratum d. bedrock e. subsoil.arrow_forward
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