logging in or signing up NATURAL RESOURCES aashu95 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: 5913 Category: Education License: All Rights Reserved Like it (14) Dislike it (0) Added: August 28, 2010 This Presentation is Public Favorites: 11 Presentation Description THIS PRESENTAION ON NATURAL RESOURCES MADE BY ARSHPREET SINGH WADEHRA (www.aashuzone.com) GOOD PRESENTATION ABOUT 15 SLIDES AND GET FULL WITH ANIMATION GET KNOWLEDGE OF FOREST, WIND ENERGY, SOLAR ENERGY, FOSSIL FUELS ETC WATCH THIS !NJOY FOR DOWNLOAD CONTACT ME http://aashuzone.com/contact Comments Posting comment... By: rishishah587 (11 month(s) ago) can u please send me this presentation to my email id it will be very thank ful to u my email id is firstname.lastname@example.org Saving..... Post Reply Close Saving..... Edit Comment Close By: rajeevkhosla13 (29 month(s) ago) Can u please send this presentation to email@example.com? I shall be very thankful to you. Saving..... Post Reply Close By: aashu95 (27 month(s) ago) send Saving..... Edit Comment Close By: aashu95 (33 month(s) ago) ...... Saving..... Post Reply Close Saving..... Edit Comment Close By: bhavyamale (33 month(s) ago) hi, please could send it to my mail. ID is firstname.lastname@example.org Saving..... Post Reply Close By: aashu95 (33 month(s) ago) i send you please dont forget to bookmark http://aashuzone.co.nr Saving..... Edit Comment Close By: sunil.hosakoti (36 month(s) ago) please make this downloadable.......... Saving..... Post Reply Close By: aashu95 (36 month(s) ago) Go to http://feedburner.google.com/fb/a/mailverify?uri=Aashuzone this link and enter your e-mail address and confirm it and then mail @ email@example.com & visit http://aashuzone.blogspot.com You get downloading link of this presentation within hour Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript Welcome To Social Studies Presentation : Welcome To Social Studies Presentation Slide 2: Made By Arshpreet Singh of X-E NATURAL RESOUCES Slide 3: FORESTS A forest is any area with a lot of trees. There are forests all over the world. The type of forest varies depending on the location of the forest: for example, there are tropical rain forests, coniferous forests, and deciduous forests. Slide 4: Forests occur naturally, but they can be affected positively and negatively by human behavior. If a forest is carefully replanted and allowed to grow, it can exist in balance. If the forest is cut down faster than it can grow back, then it will be used up quickly. Affects of Forest Slide 5: Forests serve as home to many of the organisms that live on the land. Forests are also very important because they are major contributors to recycling and cleaning the world supply of oxygen. Forests also provide wood, which is useful both as a construction material and as a fuel source. Importance Of Forest Slide 6: FOSSIL FUELS Slide 7: Fossil fuels take millions of years to form. They are the product of the fossilized remains of dead plants and animals that have been exposed to the heat and pressure deep within the earth’s crust. There are many types of fossil fuels, such as petroleum (gasoline), natural gas, and coal. Fossil Fuels Fossil Fuels: Source of energy : Fossil Fuels: Source of energy Fossil fuels are arguably one of the most valuable natural resources in modern times. It is estimated that 86 percent of the world’s energy comes directly from burning fossil fuels. Fossil fuels are the source of energy for almost every machine, including the generators that produce electric energy. Fossil Fuels: Affect Environment : Because fossil fuels take so long to form, they are being consumed faster than they can be produced. Fossil fuels are a major contributor to air pollution because when they are burned they release many dangerous gases such as nitrogen dioxide, methane, and carbon dioxide. Fossil Fuels: Affect Environment Slide 10: Solar Energy The sun is the closest star to Earth. It brings heat and light to the world. Some areas of the world, such as those closest to the equator, have more sun than others. Solar Energy : Solar Energy The sun shines naturally but it is not affected by human activity. It cannot be used up. However, its intensity varies with the seasons, and it is not available at night. Solar Energyuseful for plants : Solar Energyuseful for plants The sun’s rays are used for energy by organisms that undergo photosynthesis. Nearly every organism on the planet gets energy through photosynthesis, directly or indirectly. There are also ways that people can utilize the energy that the sun provides. Uses Solar Energy : Uses Solar Energy We can use solar power in simple (facing the sun to get warm, using greenhouses to grow food, etc.) and more complex (solar panels for heating) ways. Wind : Wind The wind blows naturally – it is not caused by human activity, and it cannot be used up. The power of the wind drives sailboats. It has been used to power windmills that grind grain. Windmills can also use the circular movement of the blades to turn a turbine. This is increasingly used as a means of generating electricity. Wind : Wind Wind power does not make greenhouse gas emissions. It does not directly cause pollution. However, critics of wind power say a large number of windmills could cause problems for animals, especially migratory birds. Some people think the windmills are unattractive. THINGS TO REMEBER : THINGS TO REMEBER A forest is an area with a lot of trees. Forests is a renewable resource, if we do Aforestation Forests can be used as an energy source by burning of wood as a fuel. Deforestation cause pollution; cutting down trees takes away animal homes and affects the oxygen in the world. Fossil fuels are the product of the fossilized remains of dead plants and animals that have been exposed to the heat and pressure. Fossil fuels are found deep within the earth’s crust. Fossil fuels are currently producing 86% of the world’s energy. Disadvantage of fossil fuels are They pollute the environment, they are not renewable. Solar energy comes from the sun. Solar energy is a renewable resources Uses of Solar Energy It can be used for warmth, for light, and via solar panels to generate electricity. Wind is caused by the uneven heating of the atmosphere Wind as energy sources: Wind can power windmills or power turbines to make electricity. Slide 17: THANK YOU You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.