Tag: the soil

Quizzes (7) Questions (165)

Questions Related to the soil

Multiple choice general knowledge the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

The cutting of forests leads to

  1. Soil erosion and incontrollable floods

  2. Desilting and denaturation

  3. Increase of rainfall and humidity

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Deforestation removes the root systems that hold soil in place and the canopy that intercepts rainfall, leading to increased surface runoff, soil erosion, and flooding.

Multiple choice general knowledge the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

Consider the following statements:
1) Contour ploughing prevents soil erosion and the formation of gullies.
2) Gully erosion is the removal of top soil and creation of many steep-sided cuttings in hillside.
Which of the statements given above is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Contour ploughing slows water runoff and reduces erosion. Gully erosion involves the formation of deep channels by concentrated water flow, which is a severe form of soil degradation.

Multiple choice general knowledge the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

As organic matter decomposes, it releases nutrients and organic acids. These acids known as _______ attack clays and rock, releasing iron and aluminium.

  1. humification agents

  2. chelating agents

  3. leaching agents

  4. reducers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chelating agents are organic compounds that can bind to metal ions, such as iron and aluminum, facilitating their mobilization and transport in the soil profile.

Multiple choice general knowledge the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

Identify the wrong statement.

  1. Terra Rossa is a soil typical of Mediterranean scrub biome

  2. Science of soils is called Pedology

  3. Stream is the most important agent of soil erosion

  4. The term edaphic refers to soils
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While streams cause erosion, water (in general) or wind are often cited as primary agents, but the statement 'Stream is the most important agent of soil erosion' is generally considered incorrect in a broad context compared to the overall impact of water runoff or wind.

Multiple choice general knowledge the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

'Frost Hollows' is/are related to _______.

  1. form of precipitation

  2. temperature inversion

  3. a type of cloud

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Frost hollows occur in low-lying areas where cold, dense air settles due to temperature inversion, leading to lower temperatures than the surrounding higher ground.