{"id":4321,"date":"2020-08-28T06:28:26","date_gmt":"2020-08-28T00:58:26","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=4321"},"modified":"2021-07-02T15:04:07","modified_gmt":"2021-07-02T09:34:07","slug":"kseeb-solutions-class-8-science-chapter-1","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/kseeb-solutions-class-8-science-chapter-1\/","title":{"rendered":"KSEEB Solutions for Class 8 Science Chapter 1 Natural Resources"},"content":{"rendered":"<h2>Karnataka Board Class 8 Science Chapter 1 Natural Resources<\/h2>\n<h3>KSEEB Class 8 Science Chapter 1 Textual Questions &amp; Answers<\/h3>\n<p>I. Four alternatives are given to each of the following incomplete statements. Choose the right answer:<\/p>\n<p>Question 1.<br \/>\nOne of the following does not belong to the group.<br \/>\n(a) Water<br \/>\n(b) forests<br \/>\n(c) petrol<br \/>\n(d) soil<br \/>\nAnswer:<br \/>\n(c) petrol<\/p>\n<p>Question 2.<br \/>\nGovernment has banned hunting of wild animals. This helps to.<br \/>\n(a) maintain biodiversity<br \/>\n(b) promote tourism<br \/>\n(c) provide food to animals<br \/>\n(d) maintain soil fertility.<br \/>\nAnswer:<br \/>\n(a) maintain biodiversity<\/p>\n<p>II. Fill in the blanks with suitable words:<\/p>\n<p>Question 1.<br \/>\nResources that get replenished in nature are called &#8230;&#8230;&#8230;&#8230;&#8230;.<br \/>\nAnswer:<br \/>\nRenewable natural resource<\/p>\n<p>Question 2.<br \/>\nPetrol and Kerosene are &#8230;&#8230;&#8230;&#8230;&#8230;. forms of natural resources.<br \/>\nAnswer:<br \/>\nNon &#8211; renewable<\/p>\n<p>Question 3.<br \/>\nIf there is rise in water table, soil becomes &#8230;&#8230;&#8230;..<br \/>\nAnswer:<br \/>\nSaline<\/p>\n<p>Question 4.<br \/>\nSoil provides &#8230;&#8230;&#8230;.. and &#8230;&#8230;&#8230;&#8230;&#8230; to terrestrial plants.<br \/>\nAnswer:<br \/>\nMinerals and water<\/p>\n<p>Question 5.<br \/>\nAn example for renewable resources is &#8230;&#8230;&#8230;.<br \/>\nAnswer:<br \/>\nSolar energy<\/p>\n<p>III. Answer the following:<\/p>\n<p>Question 1.<br \/>\nWhat are natural resources?<br \/>\nAnswer:<br \/>\nThe things that occur in nature and that are useful to us are called natural resources.<\/p>\n<p>Question 2.<br \/>\nDifferentiate between renewable and non-renewable resources.<br \/>\nAnswer:<\/p>\n<p>Renewable Resources:<\/p>\n<ul>\n<li>These resources can be replenished.<\/li>\n<li>These are continuously available for use and are inexhaustible.<\/li>\n<\/ul>\n<p>Non-renewable Resources:<\/p>\n<ul>\n<li>These resources cannot be replenished.<\/li>\n<li>They get depleted, i.e. they are exhaustible.<\/li>\n<\/ul>\n<p>Question 3.<br \/>\nList the uses of water?<br \/>\nAnswer:<br \/>\nThe uses of water are as follows :<\/p>\n<ol>\n<li>Water is very much essential for the existence of life.<\/li>\n<li>It is a factor for many aspects of life such as environmental stability, biodiversity conservation, fuel security, and even healthcare.<\/li>\n<li>Water is used for various human activities like drinking, agricultural purposes washing, and recreation.<\/li>\n<li>Water is used for heat exchange processes industries and fire extinguishers.<\/li>\n<li>The largest use of water occurs in the agricultural sector.<\/li>\n<li>Water is used for producing electricity by the hydroelectric power plant.<\/li>\n<\/ol>\n<p>Question 4.<br \/>\nWhat is mining?<br \/>\nAnswer:<br \/>\nMining is the process of extraction and processing of minerals.<\/p>\n<p>Question 5.<br \/>\nWhat happens if too many fossil fuels is used?<br \/>\nAnswer:<br \/>\nFossil fuels are non-renewable resources. They Cannot be replenished once depleted. Too much of the usage of fossils fuels leads to energy crises in the near future<\/p>\n<p>Question 6.<br \/>\nA student argues that a nation will be rich if its forests are conserved. Explain<br \/>\nAnswer:<\/p>\n<ol>\n<li>Forest provides many products like resins gums, dyes, lace, fibers, wax, honey, medicines.<\/li>\n<li>Forest provides raw materials for various wood-based industries such as paper, board, rayon, etc.<\/li>\n<li>Forest provides timber which is an important material in constructing buildings and furniture.<\/li>\n<li>Forest have aesthetic value and provide opportunities in tourism.<\/li>\n<li>Therefore the forest plays an important role in the country\u2019s economy.<\/li>\n<\/ol>\n<h3>KSEEB Class 8 Science Natural Resources Additional Questions &amp; Answers<\/h3>\n<p>Question 1.<br \/>\nWhat are the natural resources?<br \/>\nAnswer:<br \/>\nThe things that occur in nature and that are useful to us are called natural resources.<\/p>\n<p>Question 2.<br \/>\nGive any two examples of living resources.<br \/>\nAnswer:<br \/>\nForest and wildlife are examples of living resources.<\/p>\n<p>Question 3.<br \/>\nGive any Four examples of non\u00acliving resources.<br \/>\nAnswer:<br \/>\nLand, water, air and mineral ores are examples of non-living resources.<\/p>\n<p>Question 4.<br \/>\nGive reason<br \/>\nI) water should be used judiciously.<br \/>\nAnswer:<br \/>\nNearly 97% of water on earth is held in ocean and Seas, about 2.4% of water is found in glaciers and polar ice-caps. Only a small percentage is available for human use, therefore, water should be used judiciously.<\/p>\n<p>Question 5.<br \/>\nWhat are the reasons for the depletion of water?<br \/>\nAnswer:<br \/>\nThe reason for the depletion of water are :<\/p>\n<ol>\n<li>Increase in population.<\/li>\n<li>Pollution and Destruction of forests.<\/li>\n<li>Improper use of water.<\/li>\n<\/ol>\n<p>Question 6.<br \/>\nMention the importance of the soil.<br \/>\nAnswer:<br \/>\nThe importance of soil as follows :<\/p>\n<ol>\n<li>Soil is a natural resource that provides minerals and water to all land plants.<\/li>\n<li>Soil is a primary nutrient base for agricultural crops.<\/li>\n<li>Soil is the place of living for a wide, variety of organisms like earthworms, crabs, insects, and microorganisms.<\/li>\n<\/ol>\n<p>Question 7.<br \/>\nHow does desertification occur?<br \/>\nAnswer:<br \/>\nDue to waterlogging and Salinisation are the main causes of another serious problem in which once fertile lands are becoming barren and useless. This condition is called desertification.<\/p>\n<p>Question 8.<br \/>\nMention the importance of Forests.<br \/>\nAnswer:<br \/>\nThe importance of forests are as follows<\/p>\n<ol>\n<li>Forest are renewable natural resources that have innumerable contributions to the environment.<\/li>\n<li>Forests maintain the water cycle.<\/li>\n<li>They provide habitat for wild animals.<\/li>\n<li>They maintain Soil quantity by preventing Soil erosion.<\/li>\n<li>They provide timber and many other useful products and services.<\/li>\n<li>They are indicators of the natural wealth of a nation.<\/li>\n<\/ol>\n<p>Question 9.<br \/>\nDefine the term wildlife.<br \/>\nAnswer:<br \/>\nThe term wildlife is used to describe the species of plants and animals living in the wild.<\/p>\n<p>Question 10.<br \/>\nWhat are the reasons for the extinction of many species?<br \/>\nAnswer:<br \/>\nThe reasons for the extinction of species are.<\/p>\n<ol>\n<li>Destruction of their natural habitats.<\/li>\n<li>Human activities such as hunting, poaching, and capturing meat, furs, horns skin, ivory, etc&#8230;<\/li>\n<\/ol>\n<p>Question 11.<br \/>\nWrite the measures for the conservation of living resources.<br \/>\nAnswer:<br \/>\nThe measures are taken to conserve the living resources are,<\/p>\n<ol>\n<li>Proper maintenance of their natural habitats.<\/li>\n<li>Establishment of National Parks, wildlife sanctuaries bird sanctuaries.<\/li>\n<li>Restriction or hunting, poaching or animals by strict legislation.<\/li>\n<li>Protection of sample population in zoos and botanical gardens and other man-made situations.<\/li>\n<li>The Creation of seed banks, gene banks, and similar genetic resource centers.<\/li>\n<\/ol>\n<p>Question 12.<br \/>\nWhat are fossils fuels? How are they formed?<br \/>\nAnswer:<br \/>\nThe non-renewable resources such as Coal, petroleum products and natural gas represents fossil fuels. They are formed by the result of the photosynthetic activity of green plants. Which were existing millions of years ago?<\/p>\n<p>Question 13.<br \/>\nName the types of coal and their carbon content.<br \/>\nAnswer:<br \/>\nThe types of coal are<\/p>\n<ol>\n<li>Anthracite &#8211; Carbon content is about 80%, it is very hard.<\/li>\n<li>Lignite &#8211; Carbon content is about 60%-65%.<\/li>\n<li>Bituminous Coal &#8211; Carbon content is less than 40%.<\/li>\n<\/ol>\n<p>Question 14.<br \/>\nName a few petroleum products.<br \/>\nAnswer:<br \/>\nPetrol, diesel, Kerosene, lubricating oils and naptha represent various forms of petroleum products.<\/p>\n<p>Question 15.<br \/>\nNatural gas is considered as eco-friendly give reason.<br \/>\nAnswer:<br \/>\nThe low sulphur content of natural gas makes it the least pollutive Source of fuel. Therefore it is considered eco-friendly fuel.<\/p>\n<p>Question 16.<br \/>\nWhat are minerals?<br \/>\nAnswer:<br \/>\nMinerals the metallic compounds, naturally found in the earth\u2019s crust and not formed from living matters.<\/p>\n<p>Question 17.<br \/>\nMinerals are also considered as non-renewable resources. Give reason.<br \/>\nAnswer:<br \/>\nThe rule of formation of such minerals is very slow compared to the rate at which they are being used by human Such resources which cannot be replenished. Once depleted are called Non-renewable resources.<\/p>\n<p>Question 18.<br \/>\nNon-Renewable Resources are popular why?<br \/>\nAnswer:<\/p>\n<ol>\n<li>Gives energy quickly<\/li>\n<li>Easy to store and transportation is easy.<\/li>\n<li>High efficiency<\/li>\n<li>Leaves no residue<\/li>\n<\/ol>\n<h4><a href=\"https:\/\/kseebsolutions.guru\/kseeb-solutions-class-8-science\/\"> KSEEB Solutions for Class 8 Science<\/a><\/h4>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Karnataka Board Class 8 Science Chapter 1 Natural Resources KSEEB Class 8 Science Chapter 1 Textual Questions &amp; Answers I. Four alternatives are given to each of the following incomplete statements. Choose the right answer: Question 1. One of the following does not belong to the group. (a) Water (b) forests (c) petrol (d) soil &hellip;<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/4321"}],"collection":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/comments?post=4321"}],"version-history":[{"count":0,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/4321\/revisions"}],"wp:attachment":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/media?parent=4321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/categories?post=4321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/tags?post=4321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}