Answer true or false Soils with low CEC are subject to leaching.
Question:
Answer true or false:
Soils with low CEC are subject to leaching.
CEC or Cation exchange capacity:
Cation exchange capacity can be simply defined as the total capacity of the soil to hold the cations, which are exchangeable. It cannot be changed easily, and it affects the soil ability to hold the essential nutrients needed for development.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerSoil with low cation exchange capacity is subjected to leaching. If there is a high negative charge on the soil particles, they can hold the cations...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:
from
Chapter 14 / Lesson 17Understand the development of a soil profile. Explore a layers of soil diagram to understand the layers of soil that form the soil horizon of various soil profiles.
Related to this Question
- True or false: Soil in the taiga has a top layer of rich humus and a deeper layer of clay.
- Soil horizons develop by either removal or accumulation of ions, colloids and chemical compounds. True False
- A pH value lower than 7 indicates alkaline soil. True False
- Erosion is a greater threat to soil resources than is suburbanization. Is the statement true or false?
- The highest abundance of microbial life in soils appears in the O horizon. A) True B) False
- Soil texture determines both the oxygen-holding and water-holding capacity of the soil. Is the statement true or false?
- The humus layer is essential for maintaining soil fertility. Is the statement true or false?
- True or False: Ecosystems are always restricted to pieces of land less than a square mile.
- Aquifers are underground sources of usually potable. Is the statement true or false?
- The importance of colloids is their ability to attract soil nutrients. True False
- The Principle of Superposition supports the position that the oldest strata is on the top. a. True b. False
- True/false. Explain why. The addition of high concentrations of charged chemicals (positive or negative) can decrease aggregate formation in soil.
- True or false? The crust and upper mantle of the Earth essentially float on semi-solid rock.
- The active layer of permafrost terrains is due to seasonal thaws. True False
- Acid deposition may fall to the Earth's surface as rain, snow or dry deposition. A. True B. False
- Clay soils are not good for most crops because they can hold too much water and contain too little oxygen. Is the statement true or false?
- Determine if the following statement is true or false. If false, explain why. Increasing the pH of the soil from 5.5 to 7.0 would increase the availability of mineral cations to plants growing in that soil.
- True/false. Explain why. The three phases in soil are sand, silt, and clay.
- State whether the following is true or false and give a reason why. Biological N fixation declines as soil N availability increases.
- Pollution can enter aquatic ecosystems through the soil. (True/False)
- A vertical series of soil profiles make up a soil horizon. Is the statement true or false?
- True or false? Because of competition with plant roots for nutrients, microbial numbers in the rhizosphere are typically much lower than in surrounding bulk soil.
- The asthenosphere is a solid layer in the Earth's core that is rigid. a. True b. False
- True or false? A culture medium simply supplies nutrients and conditions essential for the growth of a culture.
- Most erosion is due to runoff from human construction projects. Is the statement true or false?
- Determine whether the following statement is true or false: Most inorganic carbon used by producers is found in the soil and not in the atmosphere.
- True or false? Landfill leachate collection systems are designed to eliminate or reduce the likelihood of groundwater contamination.
- The majority of the major aquifers in the world are being depleted unsustainably (being used faster than they are being replenished). Is the statement true or false?
- Water is a determinant of a soil's fertility but not of its productivity. Is the statement true or false?
- Huge levels of food exports from Australia to Japan are degrading Australian soil nutrient stocks and causing troubling accumulations of excess nutrients in Japan : true or false
- Conservation techniques specifically designed to prevent erosion on sloped land including low-till and no-till planting. Is the statement true or false?
- True or false? The groundwater aquifers of India have been severely over-pumped.
- There are no real differences between organic and synthetic fertilizers. Is the statement true or false?
- Secondary succession occurs after a disruption and an ecosystem is rebuilt. Is the statement true or false?
- Determine whether the following statement is true or false: Afforestation can significantly increase the carbon sequestration rate for an area.
- True or false? The sedimentary cycle prevents the leaching of phosphorus from rocks.
- Answer true or false Matter can only be found in a solid state.
- Eutrophication is usually associated with pollution from nutrients. a. True b. False
- True or false? A normal fault is formed from tensional stress.
- The discharge of a river usually decreases downstream. Is the statement true or false?
- State True or False and justify your answer: Avalanches are a common disturbance to marine ecosystems.
- True or False: All of the colonies form on the surface of a spread plate, whereas on a pour plate, colonies may be embedded in the agar as well as on the surface. Explain.
- High turbidity means clearer water. True or False.
- True or false? A major earthquake in the subduction zone along the coast of Chile is just Chile's problem.
- True or False: Antisepsis is the use of chemical methods for disinfecting living surfaces.
- True or False: The energy that flows through the ecosystem cannot be recycled.
- Tectonic and gradational processes work to create the variety of Earth's landforms. a. True b. False
- True or False? The apoplast is always smaller than the symplast.
- Rocks are mixtures, or aggregates, of minerals. a. True b. False
- The location of point source pollutants are more easily identified than non-point source pollutants. A) True B) False
- The Front Range of the Colorado Rockies around Denver experienced approximately 12,000 feet of uplift during the Laramide Orogeny. a. True b. False
- You can use the coarse adjustment with the scanning objective and the low power objective in place. - True - False
- State True or false, if false explain why. A plant with a deficiency in a phloem-mobile, mineral nutrient will show deficiency symptoms in older leaves before younger leaves.
- True or false? Gills are adopted for gas exchange in terrestrial-land-bearing environments.
- True or false? Continental crust subducts under less dense oceanic crust.
- The greater the water content of the rock, the lower its melting point. Is the statement true or false?
- A shallow concentration gradient limits the rate of facilitated diffusion. True or False? Correct the statement if it is false.
- True or false? Ocean upwelling and lake turnover are processes that bring nutrients from the bottom of these aquatic ecosystems to the surface of the water.
- Once you go to any objective higher than 10x, the coarse focus adjustment is not used. a. True b. False
- Which of the following statements about soil is true? a) Pore spaces are always filled with about 50% air and 50% water. b) A single teaspoon of fertile agricultural soil may contain up to several hundred living microorganisms. c) The texture of a soil is
- State True or False. All of the water in a stream originates from precipitation within its watershed.
- Nonkeratinized cells exfoliate from the surface of the skin. Is the statement true or false?
- Even transient non-community water supplies can cause illnesses. Is the statement true or false?
- State True or False: "Modifiers can be used with both levels of HCPCS codes."
- There are over 30 major tectonic plates. a. True b. False
- Contact metamorphism occurs over a localized area when magma into the crust. a. True b. False
- True or False? Guttation is not limited by the height of the tree because root pressure will always be strong enough to push water up into the leaves.
- The net movement of molecules from an area of low concentration to an area of high concentration flows against the concentration gradient. True False
- True or False: Abrasion can eventually flatten the masticatory surfaces and expose the dentine, reactionary dentin formation in response to this slows the process and protects the pulp. Explain.
- The level of sorbitol is directly proportional to the ability of polydextrose to form a viscous solution. a. True b. False
- Cross-sectional studies are weak because they provide no direct evidence of sequence of events. a. True b. False
- Hematocrit is significantly different between low altitude and high altitude pikas. a) True b) False
- Electrostatic repulsion of negatively charged sugar-phosphate backbone at low salt. A. True B. False
- True or false: Unavailable water is held so tightly that it is unavailable to plants.
- True or False: It is best to observe slides of bacteria stained with the acid-fast stain under high dry magnification.
- Which of the following statements is false? A. Leachate is a liquid that seeps from solid waste in sanitary landfills. B. If we reduce the municipal solid waste stream to near zero, there will be no need for sanitary landfills. C. Hazardous waste is any s
- As high-input agricultural practices have increased productivity, they have done so at the expense of soil health. Is this statement true or false?
- Ventilation rate is significantly different between low altitude and high altitude pikas. a) True b) False
- Screening dirt is an important method for finding small items associated with human remains. True or False.
- Stroke volume is significantly different between low altitude and high altitude pikas. a) True b) False
- Lariats are formed during post-translational regulation. a. True b. False
- True or false? The sun is the main source of energy for most terrestrial and aquatic systems.
- True or false? A system with low free energy is highly unstable and has a greater capacity to do work than a system with high free energy.
- True or false? Net primary productivity is greater in areas with a long photosynthetic period than in areas with a short photosynthetic period.
- True or False: In writing a report, the abstract goes at the beginning of the report.
- The Mohorovicic discontinuity tends to be a mirror image of surface topography. a. True b. False
- If the result for the carbohydrate test is negative, then the organism had no growth in the tube. A) True B) False
- Nonconformities can involve the rock unit granite. Is the statement true or false?
- Wrinkly textures in rock that formed from ancient biofilms living in marine sediments are fossils. True or False?
- Blood pH is significantly different between low altitude and high altitude pikas. a) True b) False
- The maximum population density in many systems occurs at a high level (of intensity or frequency, or both) of natural disturbance. Is the statement true or false?
- Since new lithosphere is being created at oceanic ridges due to plate tectonics, the Earth is getting larger all the time. a. True b. False
- Determine whether the following statement is true or false: Motility test medium is a slant.
- A primary pollutant from burning coal is sulfur dioxide. A. True B. False
- True or false? Water is considered a renewable resource because it is plentiful in all regions of Earth.
- Matter is constantly recycled in ecosystems: individual atoms take countless trips through biogeochemical cycles, passing through living things, air, water, and/or rocks and soil. a. True b. False
- Mixing of sewage with fresh water is a major problem. Is the statement true or false?
- True or False: Water, without nutrients from food, is not adequate for six days.
- True or False: It is important that any negative and unexpected result is not included in a lab report.
- A newly formed volcanic island can trigger secondary succession. Is the statement true or false?