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It highlights unique physical features of continents and the role of physical maps, explaining legends and color codes. The chapter clarifies Earth’s oblate spheroid shape, map projections, and distortions using examples like Mercator and Robinson. It then explores the oceans, including their vast coverage, life support, oxygen contribution, and regulation of climate, followed by ocean currents and deep-sea trenches.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/world-geography-some-glimpses-chapter-1-explore-and-learn/661595/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/world-geography-some-glimpses-chapter-1-explore-and-learn/661595.png","ImageObject",300,407,{"name":92,"@type":93},"Levi","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What are physical maps and why do they use colours?","Question",{"text":112,"@type":113},"Physical maps focus on Earth’s natural features and use colours as a visual language to represent water bodies, plains, plateaus, mountains, deserts, ice, and glaciers.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why do map projections cause distortion?",{"text":117,"@type":113},"Because showing the Earth on a flat surface is difficult, all maps are compromises that preserve some properties while distorting others.",{"name":119,"@type":110,"acceptedAnswer":120},"How do ocean currents affect coastal climates?",{"text":121,"@type":113},"Ocean currents move warm or cold water and influence temperature along coasts; for example, the Gulf Stream makes places like the United Kingdom warmer than other locations at the same latitude.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},661595,1793171474,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},7971461740909,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","CHAPTER  \n1  \n# World Geography:Some Glimpses\n\nThe modern age has brought the geography of the earthnear to us,but made it dificult for us to come into touchwith man.  \n—Rabindranath Tagore  \nFig.1.1.Animage of the Earth 'stitched together'by scientists at NASA using minute datacollected over severalyears.  \n1.What are the unique physicalfeatures of the continents?  \nThe Big  \n2.Why do we need to understandworld geography?  \n0882CH01  \n3.How do human actions triggerenvironmental issues?  \nCartographer:  \nPerson who  \ndraws or  \nproduces maps  \nOblate  \nExploring Society: India and Beyond一Grade 8 Part 2  \nspheroid:  \nA nearly  \nspherical  \nshape that  \nbulges at  \nthe equator  \nand is  \nslightly  \nflattened at  \nthe poles  \ndue to its  \nrotation  \nThe Earth has long been revered as a mother by indigenouscommunities and personified in India as a living deity,oftenknown as Bhūdevī or Vasudhā.Human lives are deeplyconnectedto its many features;forinstance,the distant SouthernIndian Ocean influences the monsoon in the Gangetic Plains.From vast oceans to towering mountains and harsh deserts,humanity has long sought to understand the planet's wonders.Let's take a quick tour of our'blue planet’,our home,to give youa glimpse of a few of them.  \nLET'S EXPLORE  \n→What do you think each of the different colours in themap in Fig.1.1 represents?  \n→Since this chapter is about world geography,we areconcerned with physical maps.Physical maps have theirown language that use colours—  \nBlue:water bodies(oceans,seas,lakes,rivers);  \nGreen:plains;Yellow/Brown:plateaus;  \nDark brown:high mountains;Light yellow:deserts;  \nWhite:ice and glaciers  \n## THE COMPLEXITY OF MAPPING THE EARTH\n\nThe Earth is an oblate spheroid.When we draw a map,we tryto show the Earth on a flat surface.Take an orange;imagine thatit represents the Earth.Now peel it and lay the peel flat withouttearing it.As you will discover,it is quite impossible to do so.Thisis why all maps have some distortion.The process of showing theEarth on a flat surface is called a map projection.Cartographershave made several attempts at creating accurate representativeprojections of the Earth.They use different methods to draw theworld.Some maps show the right shapes of countries but wrongsizes,while others show the right sizes but distorted shapes.  \nEvery map is a compromise.To understand the world fairly,wemust look at multiple projections,not just one.Given beloware two projections.  \nFig.1.2.(1)The Mercator Projection—Preserves shape anddirection,making it useful for navigation.However;it greatlydistorts size near the poles(e.g.,Greenland looks as big as Africa).  \nFig.1.2.(2)Robinson Projection—A compromise map that balances size andshape distortions,giving amore visually pleasing realistic'world map.  \n## DON'T MISS OUT\n\nLook at the size of Greenland compared to India in both themaps.In the Mercator Projection Greenland looks larger thanIndia whereas in fact it is smaller.  \nIndia and the World: Land and the People  \n1-World Geography: Some Glimpses  \nFig.1.3.Fluorescent plankton(very smallorganisms that float on water)on a beach  \nFig.1.4.The blue whale,the largest mammalin the world,can be over 30 metres in lengthand weigh almost 150,000 kg.  \nAs we saw,world map projections on a flat surface are tricky.They only provide a visual representation that allows us togauge size,shape,location,and distance across the wholeworld.However,professionals use maps that use the latitudeand longitude coordinates(we saw these in Grade 6)which aremore precise.  \n## THE BLUE OF THE BLUE PLANET,THE OCEANS\n\nPlankton:  \nMicroscopic  \norganisms  \nThe ocean is a vast body of saltwater covering about 71 per centof the Earth’s surface.This is why the Earth looks blue fromspace and early astronauts called it the blue planet'.The oceanshold 97 per cent of the Earth's water.They support life,from tinyplankton to giant blue whales,and help regulate the climate byabsorbing heat,slowly releasing it,and adding moisture ","cbCaig3TZJRMj9eS","https://ap.wps.com/l/cbCaig3TZJRMj9eS","pdf",8248862,34,"English","# World Geography: Some Glimpses\n## The Complexity of Mapping the Earth\n## Don't Miss Out\n## The Blue of the Blue Planet, the Oceans\n## Ocean currents\n## Ocean trenches","[{\"question\":\"What are physical maps and why do they use colours?\",\"answer\":\"Physical maps focus on Earth’s natural features and use colours as a visual language to represent water bodies, plains, plateaus, mountains, deserts, ice, and glaciers.\"},{\"question\":\"Why do map projections cause distortion?\",\"answer\":\"Because showing the Earth on a flat surface is difficult, all maps are compromises that preserve some properties while distorting others.\"},{\"question\":\"How do ocean currents affect coastal climates?\",\"answer\":\"Ocean currents move warm or cold water and influence temperature along coasts; for example, the Gulf Stream makes places like the United Kingdom warmer than other locations at the same latitude.\"}]","World Geography: Some Glimpses - Chapter 1 - Explore and Learn | PDF",86]