Tag: evs

Questions Related to evs

Which of the following contains the smallest rock particles?

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Silt

  2. Clay

  3. Sand

  4. All contain equal sized particles

Show answer
Correct Option: B
Explanation:

Clay soil particles are very small, packed very tightly and little space remain for air, water can be held in tiny space between the particles, so it has a good capacity to hold water. Thus, the correct option is C.

Loamy soil is a mixture of .......... known as silt.

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Sand

  2. Clay

  3. Another type of soil particle

  4. All of the above

Show answer
Correct Option: D
Explanation:

Loamy soil is a mixture of sand, clay and small types of other soil particles and the soil formed are known as silt. It is basically deposited on river beds. It is good for the growth of plants. Thus, the correct answer is D.

Percolation rate is highest in which of the following soil?

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Humus

  2. Clay soil

  3. Loamy Soil

  4. None of these

Show answer
Correct Option: A
Explanation:

In humus, the percolation speed is very high. This means that more amount of substances are able to pass through it. Percolation rate is basically the rate at which the water moves through granular material. In humus, water moves very quickly. As a result, its percolation rate is very high.

So, option A is the correct answer.

Which of the following occurs as a deposite of river bed?

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Silt

  2. Grovel

  3. Sand

  4. Clay

Show answer
Correct Option: C
Explanation:

Silts deposits on the river beds. Silts consist of fine sand, clay and other small stone particles which are carried by running or flood water, and deposited at the river beds. Thus, the correct option is A.

........... is used to make pots, toys and statues.

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Silt

  2. Loamy soil

  3. Sandy soil

  4. None of the above

Show answer
Correct Option: D
Explanation:

Clayey soil is used to make pots, toys and statues because the clayey soil has the highest water holding capacity than loamy, sandy and silt. Thus, the correct option is D.


Which of the following soil drains water easily?

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Loamy

  2. Clay

  3. Sandy

  4. Top soil

Show answer
Correct Option: C
Explanation:

Sandy soil is made of sand particles that are rough in texture. This prevents them from sticking tightly together. The space between sand particles is large for water to flow through it. Hence sandy soil drains faster than other types of soil. Thus the correct answer is option C.

......... is a mixture of sandy and clay.

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Humus

  2. Clayey

  3. Silt

  4. None of the above

Show answer
Correct Option: D
Explanation:

Loamy soil is a mixture of clay, sand and silt. Particles of loamy soil are smaller than sand and larger than clay. Loamy soil has also a good water holding capacity and suitable for plants growth. Thus, the correct answer is D.

Which of the following crop yields more if it is grown in clay and organic matter and having a good capacity to retain water ?

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Paddy

  2. Cotton

  3. Wheat

  4. None of these

Show answer
Correct Option: A
Explanation:
Paddy crop yields more if it is grown in clay and organic matter and having a good capacity to retain water. Wheat crops yield more when it is grown in fine clayey soil because it is rich in humus and is very fertile. Cotton is grown in sandy and loamy soil, which drain water easily and hold plenty of air. Thus, the correct answer is A

Good soil is

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Which holds whole of the water that enters into it

  2. Which allows percolating the water slowly from it

  3. Which allows water to pass very quickly from it

  4. Which allows limited amount of water to retain into it

Show answer
Correct Option: B
Explanation:

Water should percolate slowly in a soil because if water passes too rapidly, then many of the minerals and organic matter useful for plants will simply be washed away. If there is no percolation and all the water is simply held up in the soil, then there will be poor aeration and respiration in plant roots will suffer.

Soil formed by transportation of disintegrated parent material from one place to another is called as

evs mud and stones soil types types of soil soil - types, uses and need for conservation

  1. Light soil

  2. Alluvial soil

  3. Heavy soil

  4. Sedimentary soil

Show answer
Correct Option: D
Explanation:

Sediment refers to solid fragments of inorganic or organic material, that comes from the weathering of rock and are carried and deposited by wind, water, or ice. Sedimentary soil is the transported soil, which is formed in this manner. Alluvial soil is the already formed soil, carried and deposited by flowing water as rivers etc.