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Grade 7 CBSE
› Soil Worksheet-10
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The uppermost layer of the Earth's crust which is composed of a thin layer of mineral particles is called ________.
A layer of dead and decayed plant and animal remains is called _______.
The disintegration of rocks on the Earth's surface caused by exposure to natural forces such as wind, water, frost, etc. is called ________.
_____ is called the uppermost layer of the soil and it is also known as ‘A’ horizon.
The process which does not involve any change in the characteristics of the original rock is called _______ weathering.
The process in which continuous breaking down of rocks into smaller pieces take place is called ________ weathering.
The particle of soil which has a diameter of less than 0.002 mm is called _______.
The difference in particle size of the various soil constituents gives rise to a property called _______.
The removal of soil by running water and wind is known as soil _____.
The removal of trees on a large scale is known as ________.
The reduction or prevention of soil erosion is called soil ________.
Planting of trees in large numbers on deforested land is termed as ______.
On a sloping land, a series of horizontal ridges are made in a hillside to increase cultivatable land, conserve moisture, or minimize erosion are called _________.
A vertical section that shows the distinct layers of soil or horizons when we cut straight down into the soil is known as soil _______.
The rate at which water exits the soil is known as its _______ rate.
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