CAMPBELL BIOLOGY:CONCEPTS..W/JUNGLE>IC
15th Edition
ISBN: 9781269930741
Author: Reece
Publisher: PEARSON C
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Chapter 32, Problem 9TYK
Acid rain contains an excess of hydrogen ions (H+). One effect of acid rain is to deplete the soil of plant nutrients such as calcium (Ca2+), potassium (K+), and magnesium (Mg2+). Offer a hypothesis to explain why acid rain washes these nutrients from the soil. How might you test your hypothesis?
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SCIENTIFIC INQUIRY Acid precipitation has an abnormallyhigh concentration of hydrogen ions (H+). One effect ofacid precipitation is to deplete the soil of nutrients suchas calcium (Ca2+), potassium (K+), and magnesium (Mg2+).Suggest a hypothesis to explain how acid precipitationwashes these nutrients from the soil. How might you testyour hypothesis?
Soil could be deficient in any of the following nutrients. If you had to supply one of these to the soil, which would be required in the smallest amount?
Nitrogen 2. Potassium 3. Phosphorus 4. Sulfur 5. Iron
Soil could be deficient in any of the following nutrients. If you had to supply one of these to the soil, which would be required in the smallest amount?
Potassium
Sulfur
Phosphorus
Nitrogen
Iron
Chapter 32 Solutions
CAMPBELL BIOLOGY:CONCEPTS..W/JUNGLE>IC
Ch. 32 - Fill in the blanks in this concept map to help you...Ch. 32 - Prob. 2TYKCh. 32 - Prob. 3TYKCh. 32 - By trapping insects, carnivorous plants obtain...Ch. 32 - Prob. 5TYKCh. 32 - Prob. 6TYKCh. 32 - Prob. 7TYKCh. 32 - Prob. 8TYKCh. 32 - Acid rain contains an excess of hydrogen ions...Ch. 32 - Prob. 10TYK
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- What fraction of the soil represents the most active? A. Clay B. Pore spaces C. Humus D. Soil colloidsarrow_forwardA farmer has noticed that his soybean plants produce more beans in some years than others. He claims to always apply the same amount of fertilizer to the plants but he suspects the difference in crop yield may have something to do with the amount of water the crops receive. The farmer has observed that the soybeans on his farm usually receive between 0 to 0.5 inches of water per day, but he is unsure of the optimal amount of water with which to irrigate. Question: state a research question that will directly address the farmer’s problem.arrow_forwardWhich of the following is not a soil structure types? Group of answer choices True False a) Granular, b) Crystalline c) Angular blocky d) Columnar/prismatic e) Platyarrow_forward
- 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 determined by the soil’s pH (d) a soil’s organic matter includes litter, droppings, and the dead remains of plants, animals, and microorganisms (e) soil formation is unaffected by a region’s climate or topographyarrow_forwardWhy fine textured soil hold more water as compared to coarse textured soils?arrow_forwardAn experiment tested the hypothesis that soil pH affects the color of flowers produced by plants. A researcher measured the pH of the soil beneath 1,000 hydrangea plants naturally occurring outside, in a park, and recorded the colors of the flowers on each plant. The researcher found that when the soil pH was about 5.0, hydrangeas produced 99% blue flowers, and when the soil pH was around 7.0, the plants produced 98% red flowers. part a: Which of the following would be an abiotic factor in the plants’ environment? Group of answer choices A. daylength B. pollinators C. insects that eat the plants D. flowers E. birds part b: Did the researcher show that soil pH caused the color of the flowers? Group of answer choices A. Yes, because the researcher included 1,000 plants in the study. B. Yes, because the results very strongly showed the relationship between flower color and soil pH. C. Yes, because the researcher had a clearly stated hypothesis. D. No, because there…arrow_forward
- Would a soil high in clay but low in organic matter have a higher cation-exchange capacity than a soil low in clay and high in organic matter?arrow_forwardIn order to increase nutrient uptake, plant roots will often exude ____ ions into the soil, which will tend to ____ the pH of the soil. Select one: a. H+, increase b. OH-, increase c. H+, decrease d. OH-, decreasearrow_forwardThink about how humans rely on soil. From a human point of view, how has glaciation had a good and bad effect on Canada’s soils? A soil can include particles ranging in size from very fine clay to coarse sand. Why is neither of these soils ideal for plant growth, including agriculture?arrow_forward
- 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 abovearrow_forwardFigure 31.7 Which horizon is considered the topsoil, and which is considered the subsoil?arrow_forwardHow can soil erosion lead to desertification? It reduces the level of organic matter It promotes flooding that destroys vegetation It promotes salinization that destroys soil structure Which of the following is not a factor that may lead to urban sprawl? Pollution Immigration Overpopulation Which statement is NOT true about soil salinization? Soil dehydrates due to decrease in accumulation of water underground. Starts by attempting to wash the salts out of the topsoil by pumping more water. Results to the damage and killing of plants as saline water surrounds its deep roots. Which would most likely happen if too much nutrient entered a freshwater ecosystem? Algae will decrease, leaving few food resources, for fish. Nutrients would sink to the bottom, increasing soil deposition. Algae breakdown lowers dissolved oxygen, causing fish to suffocate.arrow_forward
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