Copy Of Practice Test Chapter 1
Questions and Answers
- 1.
What are some current threats to soil?
- 2.
In the movie Dirt! what are some things soil was used for?
- 3.
Another name for the B Horizon is topsoil
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The B Horizon, also known as the subsoil, is not another name for topsoil. Topsoil refers to the uppermost layer of soil, while the B Horizon is a distinct layer beneath it. Therefore, the statement that another name for the B Horizon is topsoil is false.Rate this question:
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- 4.
Another name for the A Horizon is subsoil
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The A Horizon is actually known as topsoil, not subsoil. Subsoil is the layer beneath the topsoil, and it typically contains less organic matter and nutrients compared to the topsoil. The A Horizon is the uppermost layer of soil, rich in organic matter and minerals, and is where most plant roots are found.Rate this question:
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- 5.
The C Horizon is made up of bedrock
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The C Horizon is the deepest soil layer, also known as the parent material. It consists of partially weathered bedrock and is the layer from which the upper soil layers are formed. The bedrock in the C Horizon is typically solid and unweathered, providing a stable foundation for the soil above it. Therefore, the statement "The C Horizon is made up of bedrock" is true.Rate this question:
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- 6.
The pH scale is used to measure how salty soil is
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The pH scale is actually used to measure the acidity or alkalinity of a substance, not its saltiness. Salinity is typically measured using electrical conductivity or by directly measuring the concentration of salts in the soil. Therefore, the statement that the pH scale is used to measure how salty soil is, is false.Rate this question:
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- 7.
Soil rich in humus has high fertility
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Humus is the organic component of soil that is formed by the decomposition of plant and animal matter. It is rich in nutrients, such as nitrogen, phosphorus, and potassium, which are essential for plant growth. Therefore, soil that is rich in humus has a high fertility level as it provides the necessary nutrients for plants to thrive.Rate this question:
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- 8.
A mixture is two or more substances that are mixed together but not chemically combined
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement accurately defines a mixture as a combination of substances that are not chemically combined. In a mixture, the substances retain their individual properties and can be separated through physical means. This is in contrast to a chemical compound, where the elements are chemically bonded and cannot be easily separated. Therefore, the answer "True" is correct.Rate this question:
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- 9.
What makes up soil besides rock particles, minerals, air, and water
- A.
Carbonic acid
- B.
Acid rain
- C.
Oil
- D.
Decayed organic material
Correct Answer
D. Decayed organic materialExplanation
Soil is composed of various components, including rock particles, minerals, air, and water. In addition to these, decayed organic material also makes up soil. This organic material comes from the decomposition of plants, animals, and other organic matter. As these materials break down, they release nutrients that are essential for plant growth and contribute to the overall fertility of the soil. Therefore, decayed organic material is an important component of soil composition.Rate this question:
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- 10.
Which soil particle has the largest size
- A.
Sand
- B.
Silt
- C.
Gravel
- D.
Clay
Correct Answer
C. GravelExplanation
Gravel has the largest size among the given soil particles. Gravel particles are larger than sand, silt, and clay particles. Gravel is classified as a coarse-grained soil and typically consists of rock fragments between 2 to 64 millimeters in diameter. It is commonly used in construction and landscaping due to its drainage properties and stability.Rate this question:
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- 11.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
A. Option 1 -
- 12.
The removal of what natural resource leads to the destruction of mountain tops and the loss of topsoil?
- A.
Coal
- B.
Oil
- C.
Water
- D.
Salt
Correct Answer
A. CoalExplanation
The removal of coal leads to the destruction of mountain tops and the loss of topsoil. Coal mining often involves mountaintop removal, a process where the top layers of soil and rock are removed to access the coal seams underneath. This process not only destroys the natural landscape of the mountains but also results in the loss of valuable topsoil, which is crucial for plant growth and ecosystem stability. Additionally, the removal of coal can also lead to water pollution and other environmental impacts.Rate this question:
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- 13.
Select the ones you like
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
A. Option 1Explanation
The answer is Option 1 because it is the only option that is selected. The question asks to select the ones you like, and since only Option 1 is chosen, it is the correct answer.Rate this question:
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- 14.
Scientists infer that ancient geological features formed through the same processes that they observe today based on the principle of ________
Correct Answer
uniformitarianismExplanation
Scientists infer that ancient geological features formed through the same processes that they observe today based on the principle of uniformitarianism. This principle suggests that the same natural laws and processes that are currently operating on Earth have also operated in the past. By studying the geological features and processes occurring today, scientists can make inferences about how similar features may have formed in the past. This principle allows scientists to understand the Earth's history and make predictions about future geological events.Rate this question:
- 15.
________________
Correct Answer
The release of [Blank] from a rock is one example of an agent of mechanical weathering.
pressure - 16.
________________
Correct Answer
During iron combines with oxygen in the presence of water to form rust.
oxidation
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Mar 18, 2023Quiz Edited by
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Oct 11, 2019Quiz Created by
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