Common-Core/ Grade 2
Science MCQ Based On Changes on earth s surface erosion
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Common-Core Grade 2 - 2 Changes on earth s surface erosion
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agriculture
Human activities such as deforestation and agriculture are also responsible for soil erosion.
With each horizon having a different texture and composition, the mature soils are arranged in a series of zones called soil horizons. These horizons differ with the different types of soil.
In the progress of soils, climate and time play a vital role. Soils develop very slowly in tremendously dry or cold climates, while the soil progresses more speedily in warm and humid climates due to favourable climatic conditions.
Water
​Soil erosion
The soil profile helps to identify the special features present in the soils; it is a cross-sectional view of the horizon in a soil. While studying and analysing soil pollution caused by different soils, the soil profile can be an important aspect.
Soils with an almost equivalent combination of humus, clay and sand are called loams since the soil differs in their content of clay, silt, sand and gravel. Soil texture is determined by the relative quantities of diverse sizes and types of mineral particles present in it.
Soft parent material may develop into 1 cm of soil under ideal climatic conditions within 15 years. It may require hundreds of years for hard parent material under poor climatic conditions to develop into the soil.
Erosion
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