1668578155608_1668578135885_RESOURCES.pptx

ppt on resources

1. RESOURCES Submitted by :- Sec c >Yash saini >Ankit bargali >Rishabh Raj >Isha Bhati >Zooni >Nisha >Pratima Sumitted to:- Dr. Anju Tripathi Presentation of BCA Department

2. NON RENEWABLE >The term nonrenewable resource refers to a natural substance that is not replenished with the speed at which it is consumed. As such, a nonrenewable resource is a finite resource. Humans constantly draw on the reserves of these substances while the formation of new supplies takes eons. Examples of nonrenewable resources include fossil fuels like oil,  natural gas , and coal. The opposite of a nonrenewable resource is a  renewable resource . The supplies of these resources replenish naturally or can be sustained.

3. FOREST RESOURCES The first stage of forest resource management in the United States can be called the age of forest exploitation. During the nineteenth century, many more trees were cut down than were allowed to grow nationwide. By the turn of the century, only one fifth of the land was covered with mature forest east of the Mississippi River. Faced with this scarcity, the public began to fear a shortage of timber. This scarcity was exacerbated by large, uncontrolled forest fires that followed after the indiscriminate cutting. In the early 1900s, much of the forests of the eastern United States consisted primarily of stumps, seedlings, and saplings; and large trees were unusual. The photographer and forester Fred W. Besley (1872–1960) of Maryland took a large number of photographs showing people posing next to large trees because such a posing opportunity had become special and rare. However, Besley’s interests in large trees helped to awaken the public’s awareness of the plight of the forests and the desirability of mature forests.

4. WATER RESOURCES water resource, any of the entire range of natural waters that occur on the  Earth , regardless of their state (i.e., vapour , liquid, or solid) and that are of potential use to humans. Of these, the resources most available for use are the waters of the oceans, rivers, and lakes; other available  water  resources include  groundwater  and deep subsurface waters and glaciers and permanent snowfields. Learn about global water shortage and efforts to combat the situation See all videos for this article Human use of natural waters, particularly of freshwater resources, has increased steadily over the centuries. It is unlikely that this trend will change given the continued growth of population and the ever-widening utilization of water for agricultural, industrial, and recreational purposes. This situation has given rise to growing concern over the availability of adequate water supplies to accommodate the future needs of society. Surface-water resources are already being used to their maximum capacity in various regions of the world, as, for example, in the southwestern  United States

5. MINERAL RESOURCES Minerals are compounds naturally produced on Earth. They have a clear structure and chemical composition. There are more than 3000 known minerals. Some, like gold and diamond, are rare and precious, while others, like quartz, are more ordinary. Minerals are composed of atoms as are all compounds. There are just only a hundred components around us, and they are the fundamental building blocks in everything of us. They can be found in their pure form, or chemically combined with other compound-making elements. A compound is composed of two or more chemically united elements. Over 99 per cent of the minerals that make up the surface of the Earth consists of only eight elements. Some of such elements are found as complexes in conjunction with other elements. Minerals are naturally occurring elements or compounds in the Earth’s crust. Rocks are minerally shaped mixtures. Much as the building blocks of rocks are elements, the rocks form the rock building blocks. The mineral biotite has basal cleavage which means that it has a complete cleavage. The cleavage plane on top of this sample is visible on the smooth, reflective surface. The flat surface at the bottom, in line with the top of the bowl, is similar to the rim and thus reflects the same cleavage axis.

6. FOOD RESOURCE Food resources means all commodities and products, (simple, mixed, or compound), or complements to such commodities or products, that are capable of being ingested by either human beings or animals, irrespective of other uses to which such commodities or products may be put, at all stages of processing from the raw commodity to the products thereof in vendible form for human or animal consumption. Food resources also means potable water packaged in commercially marketable containers, all starches, sugars, vegetable and animal or marine fats and oils, seed, cotton, hemp, and flax fiber, but does not mean any such material after it loses its identity as an agricultural commodity or agricultural produ ct.

7. ENERGY RESOURCES The term energy resource refers to any material that can be used as a basis or source of energy. Energy resources are used to generate electricity and other forms of power for human use. There are two kinds of energy resources - Renewable Energy Resources and Non-Renewable Energy Resources. Renewable energy is energy supplied from natural inexhaustible sources and non-renewable energy is energy supplied from sources that exist in a limited amount on Earth. Some examples of Renewable energy resources are hydro, wind, solar, biomass, geothermal etc. and of non-renewable energy are coal, petroleum etc.

8. LAND RESOURCE Land Resources are resource endowments for economic development in order to improve the quality of life and living condition of the people over time. The present survey of research on land resources attempts a review of papers dealing with application of landform studies in socio-economic development. Study of landforms is essential for better land use, land capability, land evaluation, land development and land management. In the present study major characteristics of physical attributes of land and land based resources have been attempted, reviewing the processes of land degradation and desertification, landslides, coastal processes, glacial features and climate change and role of landforms in urban development and natural hazard zonation. The rapidly growing studies on land resources have undergone a rapid change in content, methodology and approach to the study of landforms and their application in social and economic spheres. It has been observed that depletion of land resources is the greatest challenge in this century. Pressure on land is rapidly increasing due to increasing population for finite land resources.