What is Soil? Soil is the surface of the earth’s crust where plants have their roots and where many small animals make their home. It is also a result of the breakdown of rocks. Formation of Soil Soil is formed when rocks break down into very small particles by various processes such as weathering. There are two types of weathering: Physical Weathering and Chemical Weathering. Physical Weathering arises from the heating and cooling‚ the wetting and drying‚ and the freezing and
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Forests are precious national resource whim not only play significant role in national condor but help in pollution control and maintaining logical balance. These offer a number of direct indirect advantages which have been realised sin time immemorial. Direct Advantages 1. Forests provide valuable timber for dome tic and commercial use. Industries like paper‚ matt making‚ plywood‚ sports goods‚ lakh and furniture at directly based on raw materials derived from forest 2. Forests supply a
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is gully erosion? Gully erosion is the removal of soil along drainage lines by surface water runoff. Once started‚ gullies will continue to move by headward erosion or by slumping of the side walls unless steps are taken to stabilise the disturbance. Repair work done in the early stages of newly formed gullies is easier and more economical than letting the problem go unchecked for too long. Large gullies are difficult and costly to repair. What causes gully erosion ? Gully erosion occurs when
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Erosion is the name of the process which break the things like lands and continents down. The total process of weathering and breaking down is known as denudation. Commonly‚ through the process of erosion‚ the large things get broke down into some smaller pieces. The boulder turns into sand. Both the processes of weathering and erosion usually happen in the direction of downhill. The process weathering breaks up the rocks and therefore the sands are carried away by the process of erosion. Types
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OBJECTIVES: WITHIN THE SPAN OF 60 MINUTES‚ 85% OF THE GRADE 6 PUPILES WILL BE ABLE TO: A. DEFINE WHAT EROSION IS. B. IDENTIFY THE TYPES OF EROSION AFTER THE PRELIMINARY ACTIVITY. C. POINT OUT THE NEGATIVE EFFECTS OF EROSION TO THE SOCIETY. D. CONSTRUCT A PARAGRAPH THAT EXPLAINS EROSION PREVENTION. II. SUBJECT MATTER TOPIC: EROSION REFERENCE: SCIENCE AND HEALTH 6‚ INTERNET MATERIALS: SOIL‚ TUPPERWARE‚ WATER‚ GLASS SKILLS: READING‚ SPEAKING‚ WRITING VALUES: STRATEGY: COLLABORATIVE
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Soil and Its Components Research Paper SOIL AND ITS COMPONENTS Soil is everywhere. It is abundant throughout the earth and contains most of the worlds diversity. Soil is full of life. It is actually believed that a handful of soil may consist of more living organisms than there are on this Earth. GENERAL DESCRIPTION Soil is a natural body comprised of solids (minerals and organic matter)‚ liquid‚ and gases that occurs on the land surface. (Natural Resources Conservation Service‚ 2013)
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1.1 Introduction A forest is a complex ecosystem or assemblage of ecosystems dominated by trees and other woody vegetation. The living parts of a forest include trees‚ shrubs‚ vines‚ grasses and other herbaceous plants‚ mosses‚ algae‚ fungi‚ insects‚ mammals‚ birds‚ reptiles‚ amphibians‚ and microorganisms living on the plants and animals and in the soil and their interaction with one another and with the non-living part of the environment. The type of forest in a given area depends on many elements
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Introduction A forest is a complex ecosystem which is predominantly composed of trees‚ shrubs and is usually a closed canopy. Forests are storehouses of a large variety of life forms such as plants‚ mammals‚ birds‚ insects and reptiles etc. Also the forests have abundant microorganisms and fungi‚ which do the important work of decomposing dead organic matter thereby enriching the soil. Nearly 4billion hectares of forest cover the earth’s surface‚ roughly 30 percent of its total land area.The forest ecosystem
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A forest is an area with a high density of trees. There are many definitions of a forest‚ based on various criteria. These plant communities cover approximately 9.4 per cent of the Earth’s surface (or 30 per cent of total land area) and function as habitats for organisms‚ hydrologic flow modulators‚ and soil conservers‚ constituting one of the most important aspects of the Earth’s biosphere. The emerging trends of deforestation‚ desertification and soil erosion are closely linked with societal
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FORESTS; A forest‚ also referred to as a wood or the woods‚ is an area with a high density of trees. Forests cover approximately over 9.4% of the earth’s surface * USES OF FORESTS; Forests are important to the survival of human beings mainly because we are dependent on a significant degree of vast areas of forests. The following states the various uses of forests; * Habitat for wildlife. * Home for plants. * Flora and fauna. * Forest plants can be used for medicinal purposes
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