Multiple Choice
Which of the following best describes soil in many tropical rain forests?
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35. Soil
Soil and Nutrients
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Soil texture refers to the relative amounts of ________ in soil.
A
organic matter and minerals
B
nutrients and microorganisms
C
water and air
D
sand, silt, and clay
Verified step by step guidance1
Understand the concept of soil texture: Soil texture refers to the relative proportions of different particle sizes in soil, which are sand, silt, and clay. These particles determine the physical properties of the soil, such as water retention, drainage, and aeration.
Recognize the three main components: Sand has the largest particle size, silt has intermediate particle size, and clay has the smallest particle size. Each contributes differently to soil texture and properties.
Learn how soil texture is classified: Soil texture is often determined using a soil texture triangle, which shows the percentages of sand, silt, and clay in a soil sample. This classification helps in understanding soil behavior and suitability for plant growth.
Understand the importance of soil texture: The texture affects water movement, nutrient availability, and root penetration. For example, sandy soils drain quickly but may lack nutrients, while clay soils retain water but may have poor aeration.
Apply this knowledge to the problem: The correct answer is sand, silt, and clay because these are the components that define soil texture, not organic matter, nutrients, microorganisms, water, or air.
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