Plants are important resource of food and fuel and of wood and other by-products that make our other life functions possible. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Soil can also be used as building materials such as adobe and red bricks. Humans cannot manufacture their own food from the four primary resources of soil, air, Identify reasons for studying soil. It is through this vegetation that nourishes the humankind and the animal kingdom. Importance (Functions) of Soils Soils are essential for life, in the sense that they provide the medium for plant growth, habitat for many insects and other organisms, act as a filtration system for surface water, carbon store, and maintenance of atmospheric gases. Let’s remember it’s one of our most important resources, along with water and the air we breathe, and treat it … As a core component of land resources, agricultural development and ecological sustainability, it is the basis for food, feed, fuel and fibre production and for many critical ecosystem services. Most life on earth depends on soil as a direct or indirect source of food. Discuss human dependence on the soil. Soil is made up of air, water, minerals and organic material and is one of the most important natural resources on earth. 1. It takes millions of years to form soil upto a few cms in depth. Contrast plant life with human life. Discuss the importance of soil and how it affects people. Soil offers plants the physical support. The topsoil which is desirable for the growth of plants is eroded because of human activities like making of homes, roads, buildings and city expansions. Let’s make it our cause to treat soil everywhere — on our farms, in our forests and grasslands, in our yards and public spaces — as we do it in our gardens. Start studying 3.19 Unit Assessment: Resources, Part 1. It provides nutrients to plants and animals by converting dead organic matter to various nutrients. Soil is often called the "living skin" of the earth. Soil is a finite resource, meaning its loss and degradation is not recoverable within a human lifespan. It is the medium of plant growth and supports different types of living organisms on the earth. Soil is one of the most important and essential natural resources. • Texture names may include loam, sandy clay loam, silt loam, or clay depending upon the percent of sand, silt, and clay in the soil sample. Soil is an important part of the building process. Organisms found in the soil, such as worms, beetles, bacteria and fungi, obtain food from the soil. Soil is an essential natural resource that needs to be used properly and protected. In rural areas, it's easily visible, but in large cities, it's hidden beneath buildings and roads. Importance of the Soil In Agriculture. • Soil texture depends on the size of individual soil particles and is determined by the relative proportions of particle sizes that make up the soil. It is the soil that provides nutrition to this plant life. Soil as a Resource. The purpose of the compaction is to improve the load support. Soil compaction, which increases the density of the soil, is done as part of the building process. Let’s keep it healthy, naturally. 2. Soil is the most important renewable natural resource. The soil is the best natural resource available to us. If not done, structural failure can result. Soil is regarded as life and the pillar of agriculture because it is the medium onto which most plants grow. 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