logging in or signing up Natural Resources kartikchoula Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 3124 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: May 26, 2012 This Presentation is Public Favorites: 7 Presentation Description No description available. Comments Posting comment... By: ahamed.affis (16 month(s) ago) hai kartik your ppt was very perfect will you please share this ppt with me?????????????????? Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Natural Resources: Natural Resources Prepared By KARTIK Class – VIII -L A PRESENTATION ONNATURAL RESOURCES: NATURAL RESOURCES LAND NATURAL VEGETATION & WILDLIFE WATER SOILLAND RESOURCES: LAND RESOURCES LAND USE Cultivation of crops Grazing of animals Building houses, roads & airports Mining ManufacturingFACTORS AFFECTING LAND USE: FACTORS AFFECTING LAND USE Physical Factors Topography Soil Climate Availability of Water Mineral Resources Economic & Human Factors Population Industrialization Level of developmentLAND USE IN SELECTED COUNRIES: LAND USE IN SELECTED COUNRIES Countries Percentage of Area In Croplands Pasture Forest Other Use Australia 6 56 14 24 Brazil 9 20 66 5 Canada 5 4 39 52 China 10 34 14 42 France 35 21 27 17 India 57 4 22 17 Japan 12 2 67 19 Russia 7 5 44 44 UK 28 46 10 16 USA 21 26 32 21 World 11 26 31 323 STAGES OF SOIL FORMATION: 3 STAGES OF SOIL FORMATION STAGE – I Soil formation starts due to weathering of rocks & it develops organic layer. STAGE – II Bacteria & micro-organism act on the remains of plants & other organic material forming humus . STAGE – III Humus helps loose soil grains to stay together & also makes the soil more fertile .FACTORS AFFECTING SOIL FORMATION: FACTORS AFFECTING SOIL FORMATION Relief Altitude and slope, determine accumulation of soil Climate Temperature, Rainfall influence rate of weathering & humus Time Determines thickness of soil profile Flora, Fauna & Micro-organism Effect the rate of humus formation Parent Rock Determine colour, texture, chemical properties mineral, content, permeability SOILSOIL EROSION – Removal of Soil: SOIL EROSION – Removal of Soil CAUSES OF SOIL EROSION Deforestation Overgrazing of Land Improper Farming Techniques Wind & RainfallMETHODS TO CONSERVE SOIL: METHODS TO CONSERVE SOIL Afforestation Mulching Contour Barriers Rock Dam Terrace Farming Intercropping Contour Ploughing Shelter BeltsHARD FACTS ABOUT WATER: HARD FACTS ABOUT WATER 71% of earth surface is WATER 97% of earth water is salty in oceans 3% of earth water is fresh water Two third of fresh water is locked in North & South poles Only one third is found in lakes, rivers, streams or aquifers.IMPORTANCE OF WATER: IMPORTANCE OF WATER Drinking Industries For formation of Delta Irrigation Power Generation Transportation For Recreational activities like swimming, boating & fishingFACTOR RESPONSIBLE FOR WATER SCARCITY: FACTOR RESPONSIBLE FOR WATER SCARCITY Growing Population Commercialization of Agriculture Variation in Seasonal & Annual Precipitation Industrialization & Urbanization Over-utilization & mis -utilization of water PollutionMETHODS TO CONSERVE WATER: METHODS TO CONSERVE WATER Using Rain Water Harvesting Using Drip Irrigation Afforestation By Making check Dams By saving water in kitchen, bathroom By Recycling of water in industriesNatural Vegetation & Wildlife: Natural Vegetation & Wildlife Vegetation supports functions of biosphere It regulates flow of water, carbon & nitrogen Vegetation affects soil properties. Vegetation is important in use of fossil fuels as energy source Source of oxygen in atmosphereNatural Vegetation & Wildlife: Natural Vegetation & Wildlife Wildlife includes animals, birds, insects & aquatic life. They give us milk, meat, hides, wool. Insects like bees give honey. Insects help in pollination of flowers. Birds like vulture decompose dead livestock & cleans environment.PowerPoint Presentation: THANK YOU SAVE EARTH You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.