Question

please help me I am not able to solve this question ​

Answer 1

Step-by-step explanation:

WHAT IS SOIL ???

Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.

WHAT IS WEATHERING ???

Weathering is the breaking down of rocks, soils, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water, and biological organisms.

WHAT ARE THE LAYERS OF SOIL ???

Layers of Soil

1. The O-Horizon. ...
2. The A-Horizon or Topsoil. ...
3. The E-Horizon. ...
4. The B-Horizon or Subsoil. ...
5. The C-Horizon or Saprolite. ...
6. The R-Horizon. ...
7. Tensiometers. ...
8. Electrical Resistance Blocks

WHICH HORIZON IS THE MOST FERTILE ???

Topsoil is the upper layer of soil, usually between 2 to 8 inches in depth, that contains most of the ground's nutrients and fertility.

DESCRIBE IN FEW WORDS THE FOLLOWING

CLAYEY SOIL

clayey soil has very small sized particles. ... For growing crops such as wheat, gram, and paddy, the soil should be good at retaining water and rich in organic matter is suitable. Therefore, clayey soils having these characteristics are useful for such kind of crops.

LOAMY SOIL

Loam is soil made with a balance of the three main types of soil: sand, silt, and clay soil. As a general rule, loam soil should consist of equal parts of all three soil types. This combination of soil types creates the perfect soil texture for plant growth.

SANDY SOIL

Sandy Soil is light, warm, dry and tend to be acidic and low in nutrients. Sandy soils are often known as light soils due to their high proportion of sand and little clay (clay weighs more than sand). These soils have quick water drainage and are easy to work with.

HOPE IT HELPS YOU A LOT (◔‿◔)(◔‿◔)

Answer 2

What is soil?

Soil is a thin grainy substance that covers most of the surface of our Earth. It is formed because of the breaking of rocks. Humus, dead remains of plants and animals, vegetables increase the fertility of soil.

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What is weathering?

Breaking of rocks into the Earth's surface is known as weathering. Weathering of rocks take millions of years to get converted into soil. Temperature, air, water all are necessary for formation of soil from rocks.

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What are the layers of soil?

Soil develops horizontal layers, so all the different layers are clearly visible, its known as soil profile.

Layers of soil are:

• Topsoil (A horizon)
• Subsoil (B horizon)
• Rock fragments (C horizon)
• Bedrock (D horizon)

❃Topsoil= The topsoil is the uppermost layer of the soil profile. Its layer is very rich in humus. It also comprises of some dead and rotten plants and animals.

❃ Subsoil= The layer below the topsoil is subsoil. It is made of many components such as silt, clay, sand etc. All the rainwater is collected in this layer.

❃ Rock fragments= This layer comprises of weathered rocks. It is found below the subsoil.

❃ Bedrock= Bedrock is the layer of unweathered rocks and it is the last layer of soil profile.

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Which horizon is most fertile?

Topsoil (A horizon) is the most fertile horizon as it comprises of humus.

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Describe the following:

Clayey soil= The soil that comprises of organic material is known as clayey soil. It is very sticky.

Loamy soil= Loamy soil comprises of sand,silt and some amount of clay also. It is not much sticky.

Sandy soil= This soil contains large amount of sand with less amount of clay. Sandy soil is not sticky.

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