Question

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Answer 1

Answer:

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Explanation:

Fill ups

1. The rotting dead matter in the soil is called humus.
2. A vertical section through different layers of the soil is called the soil profile.
3. The mixture of rock particles and humus is called Soil.
4. Percolation rate of water is different in different types of soil. It is highest in the sandy soil and least in the clayey soil. Different types of soils are used to cultivate different types of crops.
5. loam

    6 Erosion, removal of surface material from Earth's crust, primarily soil and rock debris, and the transportation of the eroded materials by natural agencies (such as water or wind) from the point of removal. ... erosion. Water, wind, glaciers, and gravity all can change the land through the processes of erosion.

Name the following :

1. Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away
2. The uppermost horizon is called the “organic” horizon or “O” horizon. It consists of detritus, leaf litter and other organic material lying on the surface of the soil. This layer is dark because of the decomposition that is occurring. The organic materials in this layer decompose into nutrients that enrich the soils.
3. Soils with smaller particles (silt and clay) have a larger surface area than those with larger sand particles, and a large surface area allows a soil to hold more water. In other words, a soil with a high percentage of silt and clay particles, which describes fine soil, has a higher water-holding capacity.
4. Loam soil

     5 The agents of soil erosion are the same as the agents of all types of erosion: water, wind, ice, or gravity. Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.

Define the following :

1. Soil essentially is the loose material which forms the thin surface layer of Earth. Its formation is related to the parent Rock material ,relief ,climate and vegetation. It is a mixture of many different things including rock, minerals, water and air. Soil also has living things and dead things in it.
2. Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.
3. A soil profile is a vertical section of soil like the diagram above. It allows you to examine the structure of soil. A soil profile is divided into layers called horizons. The main soil horizons are A, B, C and D.

Answer 2

Answer:

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