Tag: the soil

Quizzes (7) Questions (165)

Questions Related to the soil

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

Soil erosion by wind brings about the serious damage in soil by changing the__________

  1. Soil permeability

  2. Soil structure

  3. Soil texture

  4. Soil plasticity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Surface texture is the best key to wind erosion protection. Very fine soil particles are carried high into the air by the wind and transported great distances (suspension). 
  • Fine-to-medium size soil particles are lifted a short distance into the air and drop back to the soil surface, damaging crops and dislodging more soil (saltation). 
  • Larger-sized soil particles that are too large to be lifted off the ground are dislodged by the wind and roll along the soil surface (surface creep). The abrasion that results from windblown particles breaks down stable surface aggregates and further increases the soil erodibility.
Multiple choice biology the soil soil erosion (geo) soil erosion, soil conservation and uses of soil soil erosion and conservation

Arrange the following in the descending order of their role in soil erosion
(I) Wind erosion
(ii) Chemical degradation
(iii) Physical degradation
(iv) Water erosion

  1. iv $\rightarrow$ i $\to$ ii $\to$ iii
  2. iv $\to$ ii $\to$ iii $\to$ i
  3. i $\to$ ii $\to$ iii $\to$ iv
  4. iv $\to$ iii $\to$ ii $\to$ i
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water erosion is when the flowing water carries away the soil with it.This amounts for the largest amount of soil erosion. Wind erosion is when the blowing wind carries the soil with it. physical degradation is a gradual process of many steps beginning from structural deterioration and ending in the differential loss of finer particles through erosion. Physical degradation is a gradual process in which the soil is broken down into finer particles. Chemical degradation mainly consists of soil pollution and acidification. Thus the correct answer is option A.

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

Arrange the following in descending order of their role in soil erosion.
(i) Wind erosion

(ii) Chemical degradation 
(ii) Physical degradation 
(iv) Water erosion

  1. i, ii, iii, iv

  2. iv, i, ii, iii

  3. iv, iii, ii, i

  4. iv, ii, iii, i
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Soil erosion is the process of wearing of upper layer of soil by the natural physical forces such as water and wind or by farming activities. Water erosion and wind erosion are the two major physical forces which play an important role in soil erosion. The farming activities include chemical and physical degradation. Use of pesticides leads to soil erosion. Physical degradation such as cutting of trees leads to soil erosion.

Thus, the correct answer is 'iv, i, ii, iii.'

Multiple choice geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

A small coloured paper pellet is put in a beaker half-filled with water.
The beaker is placed on a tripod stand and heated.
As the water warms, the pellet moves upwards with the warm column of water and sinks back along the cool column of water.
Identify this movement:

  1. Molten magma inside the earth

  2. earth's magma inside the earth

  3. Energy flow from one trophic level to another

  4. Hydrological cycle
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The water cycle also known as the hydrological cycle describes the continues movement of water on, above and below the surface of the earth. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go, in and out of the atmosphere. In doing so, the water goes through different phase liquid, solid (ice) and gas (vapor).

Multiple choice geography human environment interactions: the tropical and the subtropical region the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

Dentritic pattern of drainage has a _______.

  1. right angles structure.

  2. jointly rock terrain.

  3. dome like structure.

  4. branch like structure
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A dendritic drainage pattern is the most common form and looks like the branching pattern of tree roots. It develops in regions underlain by homogeneous material. That is, the subsurface geology has a similar resistance to weathering so there is no apparent control over the direction the tributaries take.

Multiple choice geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

Radial pattern of drainage has _______.

  1. right angles structure.

  2. jointly rock terrain.

  3. dome like structure.

  4. branch like structure.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Radial pattern of drainage has dome like structure.
It is a drainage pattern in which consequent streams radiate or diverge outward, like the spokes of a wheel, from a high central area; it is best developed on the slopes of a young, unbreached dome like structure or of a volcanic cone.

Multiple choice geography exogenic processes part-2 the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

Delta formed by Ganga-Brahmaputra in India is __________.

  1. Sundri delta.

  2. Sunderban delta.

  3. Chandrabhaga delta.

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

Delta formed by Ganga-Brahmaputra in India is Sunderban Delta.
The Ganges-Brahmaputra Delta (also known as the Brahmaputra Delta, the Sundarbans Delta or the Bengal Delta) is a river delta in the Bengal region of the Indian subcontinent, consisting of Bangladesh and the Indian state of West Bengal.

Multiple choice geography the challenging face of the earth and landforms the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

Mechanical weathering is caused by _____________.

  1. Plants and animals

  2. Solution action of water

  3. Temperature changes

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

Mechanical weathering (or physical weathering) is primarily driven by physical forces such as temperature fluctuations (thermal expansion and contraction), frost wedging, and pressure release, rather than chemical reactions.

Multiple choice geography the challenging face of the earth and landforms the soil soil erosion (geo) soil erosion, soil conservation and uses of soil

The process of decomposition and disintegration of rocks is called ______________.

  1. Denudation

  2. Erosion

  3. Weathering

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

Weathering is the general term for the breakdown of rocks at the Earth's surface through physical, chemical, and biological processes without significant transport, which distinguishes it from erosion.