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Subjects

Geography

Soil formation processes

In this Class 11 Geography topic from Geomorphic Processes, students learn how soil develops through the weathering of rocks and the gradual interaction of parent material, climate, organisms, relief and time. The topic explains key processes such as the addition and loss of materials, transformation of minerals and the movement of clay and other substances within the soil profile. It also helps students understand soil horizons, profile development and the influence of erosion and drainage on soil formation.

Medium · Level 6 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. They can increase chemical weathering of minerals
  2. They immediately dry all plants
  3. They completely stop rainfall
  4. They always make slopes flat
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  1. Water-holding capacity increases and nutrient availability may improve
  2. Soil fertility always becomes zero
  3. All soil particles turn into rock
  4. Soil becomes completely devoid of microorganisms
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  1. Lack of organic matter and moisture
  2. Excessive leaching everywhere
  3. Dense humus always forming
  4. Permanent waterlogging
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  1. Indication of minerals organic matter and drainage condition
  2. Only name of a country's capital
  3. Only length of a river
  4. Only height of a mountain
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  1. Root respiration may be affected
  2. Roots grow rapidly without water
  3. All nutrients increase in soil
  4. Soil immediately becomes a mountain
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  1. Soil properties may vary due to differences in moisture and temperature within one area
  2. It makes all soils identical
  3. It makes parent rock irrelevant
  4. It always ends biological activity
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  1. Hard rock may weather slowly
  2. Hard rock always becomes soil immediately
  3. Hard rock has no minerals
  4. Hard rock ends climate
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  1. Because it shows soil layers and stage of development
  2. Because it only shows cloud height
  3. Because it measures ocean depth
  4. Because it shows volcanic temperature
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  1. Structure may change and erosion risk may increase
  2. Soil always becomes rock
  3. Water never enters soil
  4. All microorganisms immediately disappear
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  1. New minerals and soluble materials may form
  2. River flow always stops
  3. Wind movement stops
  4. Humus immediately becomes stone
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  1. Particle size and organic matter
  2. Only latitude line
  3. Only mountain name
  4. Only colour of river
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  1. Because nutrients may be washed downward
  2. Because plants receive more light
  3. Because rocks quickly form mountains
  4. Because water never enters soil
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  1. Because sunlight and moisture may vary with direction
  2. Because direction removes parent rock
  3. Because direction makes all organisms same
  4. Because direction makes climate zero
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  1. Roots can widen cracks and add organic matter
  2. Roots destroy all minerals
  3. Roots stop rainfall
  4. Roots always block water in soil
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  1. Clearly developed horizons
  2. Only uniform rock
  3. Complete absence of soil layers
  4. Only strong wind
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  1. Because it affects water entry and rate of weathering
  2. Because it decides distance of the Sun
  3. Because it always prevents vegetation
  4. Because it makes all slopes equal
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  1. Water-holding capacity
  2. Rate of water drainage
  3. Average soil particle size
  4. Capacity for aeration
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  1. Humus supply may decrease and erosion may increase
  2. Soil protection always increases
  3. Roots immediately increase
  4. Leaching completely stops
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  1. Soil conservation is very necessary
  2. Destroying soil is beneficial
  3. Soil reforms in one day
  4. Soil has no relation with human life
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  1. Upward movement of water and soluble salts
  2. Immediate melting of rock
  3. Reverse flow of river
  4. Extinction of all organisms
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  1. Fertility and structure may become weak
  2. Water holding always becomes maximum
  3. All nutrients automatically increase
  4. Weathering stops in soil
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  1. They change drainage moisture and rate of weathering
  2. They only produce sea tides
  3. They always make parent material identical
  4. They make biological activity impossible
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  1. It is a combined process of parent material climate organisms relief and time
  2. It forms only by rainfall
  3. It is decided only by rock colour
  4. It is never affected by human activity
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  1. Highly humid forest area
  2. Semi arid or arid area
  3. Permanent snow area
  4. Deep marine area
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  1. Measuring river length
  2. Movement of glacier
  3. Process of soil formation and development
  4. Sea tide

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