Anantha Durga Prasad 7-Oly Narayana e-techno school KRP-BLR SOIL FORMATION & SOIL FROFILE

INTRODUCTION Soil is one of the most important natural resources. It provides annchorage to the plants and supplies water and nutrients. It is the home for many organisms. Soil is essential for agriculture. Agriculture provides food,clothing and shelter for all. Soil is thus an insepratable part of the life. The earthly fragrance of the soil after the first rain. Is always refreshing.

SOIL PROFILE Composed of distinct layers perform the following activities to find out how this layers are arranged. Let us do an activity. Take a little amount of soil Take the Soil on your hand and make it into power it. Theke glass or tumbler,three quaters water is filled with water, and then and then add a handful of soil to it Till it well with a stick to dissolve the soil. No latest and undisturbed for some time. Afterwards, we observe it answer the following questions.

TYPES OF SOIL Do you see layers of particles different sizes in the glass tumbler. Draw a diagram showing three layers. Are they some of the meaning of rotor lease or animal remaining in the soil floating on the water. Soil has four layers. They are A – horizon B - horizon C- horizon Bedrock.

SOIL FORMATION The formation of soil takes million of years to form. The process of which the rock terms to soil is called as weathering. Before they were big big rocks found ine million years ago because of the sun rays they have broken into small small particles and their format soil and some sand particles and some humus. Do you know why the big big rocks take millions of years to convert into soil? Hear the answer is. The big big rock millions of years to convert into soil because the rocks solid parts on the earth and its too strong the tune machine cannot break it so it takes millions of years to convert into soil.

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