Environmental Studies · Geography

Soil Science

1,537 Questions

Soil Science examines the formation, classification, and properties of soil as a critical natural resource. This hub offers practice questions covering soil horizons, soil types like laterite and black soil, and regional soil characteristics. The content is highly useful for agriculture exams and civil services preparation.

Soil typesSoil horizonsSoil formation factorsAgricultural soil requirementsIndian soilsForest and mountain soils

Soil Science Questions

Multiple choice climate and soil of karnataka climate, soil, natural vegetation and animals of karnataka geography

Why a variety of crops can be grown in black soil?

  1. Because its rich is aluminium

  2. Because it is rich in soil nutrients

  3. Because it retains moisture

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Black soil is rich in calcium, potassium and magnesium but has poor nitrogen content. 
  • Crops like cotton, tobacco, chilly, oil seeds, jowar, ragi and maize grow well in it. 
  • Sandy soil is low in nutrient content but is useful for growing trees such as coconut, cashew and casuarinas in areas with high rainfall.
Multiple choice climate and soil of karnataka climate, soil, natural vegetation and animals of karnataka geography

Alluvial soil consists of _____ and clay.

  1. Aluminium

  2. Iron

  3. Sand

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Alluvial soil consists of silt, sand, clay, and gravel as well as much organic matter. Alluvial deposits are usually most extensive in the lower part of a river's course, forming floodplains and deltas, but they may form at any point where the river overflows its banks or where the flow of a river is checked.
Multiple choice climate and soil of karnataka climate, soil, natural vegetation and animals of karnataka geography

What leads to the formation of laterite rock?

  1. Heavy rainfall

  2. High temperature

  3. Soil getting soft and dry up

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Laterite is a soil rich in iron and aluminium, and is commonly considered to have formed in hot and wet tropical areas. 
  • Nearly all laterites are of rusty-red colouration because of high iron oxide content. 
  • They develop by intensive and long-lasting weathering of the underlying parent rock.
Multiple choice geography rivers, coasts and glaciation rivers rivers and their work exogenic forces

Which one of these is not an agent of weathering?

  1. Water

  2. Ice

  3. Soil

  4. Temperature
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Weathering is the breakdown or dissolving of rocks and mineral in the Earths surface. Water, ice, acids, salts, plants, animals and changes in temperature are all agents of weathering. There are three mains types of weathering, viz.; 
Physical, Chemic and Biological.
Multiple choice geography rivers rivers and their work exogenic forces exogenic processes part-1

What type of soil is available in the Ganga-Brahmaputra basin?

  1. Red soil

  2. Black soil

  3. Alluvial soil

  4. Laterite soil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ganga-Brahmaputra is a river basin. As a result, it gets flooded every now and then. Therefore the bulk of the soil present in the basin region will be alluvial soil.

Multiple choice biology natural resources and agriculture patterns of cropping rotation of crops common irrigation systems

Which type of soil is preferred the most for basin irrigation?

  1. Loamy

  2. Sand

  3. Hard crust

  4. Clayey
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Loamy soil is a type of soil which is composed of sand,slit and some clay. its mineral composition is about 40%. This type of soil is mainly required for ideal plant-growing. It is rich in minerals and plants thrive best in this type of soil.

So, the correct option is 'Loamy'.

Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

For the growth of plants which of the following top soil is suitable the most:

  1. Clay soil

  2. Black soil

  3. Loam soil

  4. Sandy soil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Loam soil is considered ideal for gardening and agricultural uses because it retains nutrients well and retains water while still allowing excess water to drain away.