विश्व की मृदा, वनस्पति, फसलें, जनजातियाँ व औद्योगिक स्थल
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15 mins
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10
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विश्व की मृदा, वनस्पति, फसलें, जनजातियाँ व औद्योगिक स्थल — Questions with Answers
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with answers and explanations.
Q1.
According to Simonson (1957), which are the main soil types based on parent rock, climate and biological reactions?
Podzol, Pedocal and Pedalfer
Laterite, Alluvial and Black soil
Red soil, Desert soil and Mountain soil
Chernozem, Chestnut and Prairie soil
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Answer: A. Podzol, Pedocal and Pedalfer
According to Simonson (1957), the main soil types based on parent rock, climate and biological reactions are Podzol, leached Pedocal (calcium-rich) and Pedalfer.
Q2.
What is soil according to its composition?
A mixture of solid, liquid and gaseous substances
Only solid particles
Only organic matter
Only mineral particles
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Answer: A. A mixture of solid, liquid and gaseous substances
Soil is a mixture of several solid, liquid and gaseous substances, making it a complex medium supporting plant life.
Q3.
Pedocal soils are characterized by the presence of which element?
Calcium
Iron
Aluminum
Magnesium
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Answer: A. Calcium
Pedocal soils are calcium-rich soils typically found in arid and semi-arid regions where calcium carbonate accumulates.
Q4.
Which soil classification scheme is mentioned in the given content?
CSCS Scheme
FAO Scheme
USDA Scheme
WRB Scheme
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Answer: A. CSCS Scheme
The CSCS (Comprehensive Soil Classification System) scheme is mentioned for classifying world soils into highest categories.
Q5.
Podzol soils are typically found in which type of climate?
Cool, humid climate with coniferous forests
Hot, arid climate
Tropical monsoon climate
Mediterranean climate
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Answer: A. Cool, humid climate with coniferous forests
Podzol soils develop in cool, humid climates under coniferous forests where organic acids cause leaching of minerals.
Q6.
Which of the following is NOT mentioned as a factor in soil formation according to Simonson?
Time
Parent rock
Climate
Biological reactions
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Answer: A. Time
According to the given content, Simonson mentioned parent rock, climate and biological reactions, but time is not specifically mentioned.
Q7.
What does 'leached Pedocal' mean in the context of soil types?
Calcium-rich soil from which some minerals have been washed out
Soil rich in organic matter
Soil with high iron content
Soil with high aluminum content
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Answer: A. Calcium-rich soil from which some minerals have been washed out
Leached Pedocal refers to calcium-rich soils where some minerals have been removed through the process of leaching by water.
Q8.
In which year did Simonson classify soil types based on parent rock, climate and biological reactions?
1957
1955
1960
1965
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Answer: A. 1957
According to the given content, Simonson classified soil types in 1957 based on parent rock, climate and biological reactions.
Q9.
What is the primary characteristic that distinguishes Pedalfer soils?
High aluminum and iron content
High calcium content
High organic matter
High silica content
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Answer: A. High aluminum and iron content
Pedalfer soils are characterized by high aluminum and iron content, typically found in humid regions where leaching removes calcium and magnesium.
Q10.
The CSCS scheme classifies world soils into which level of categorization?
Highest categories
Medium categories
Lower categories
Sub-categories only
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Answer: A. Highest categories
According to the content, the CSCS scheme classifies all world soils into the highest categories for comprehensive classification.
