Ncert – class 8- science – Chapter 5: Conservation of Plants and Animals 1 Welcome to your Ncert - class 8- science - Chapter 5: Conservation of Plants and Animals 1 1. Which of the following defines the effect of deforestation on wild animals? Habitat of wild animals is destroyed, then their numbers would automatically decline. Habitat of wild animals is destroyed, then their numbers would increase. Habitat of wild animals is developed, then their numbers would automatically decline. All of the above. None 2. What are biosphere reserves? The areas meant for protection and conservation of water resources None of the above The areas meant for conservation of bio-diversity Areas where animals are placed in cages None 3. Many birds from Siberia come to India, during winter months, in the search of Warm climate and food Water availability Cool climate None of the above None 4. Which of the following is correct for a wildlife sanctuary and a biosphere reserve? Wildlife sanctuary: Major role is conservation. Biosphere reserve: Major role is protection. Wildlife sanctuary: Large protected area constructed for the conservation of biodiversity. Biosphere reserve: Area within which animals are protected from possible dangers. Wildlife sanctuary: Habitat of animals is also conserved. Biosphere reserve: Helps in the conservation of various life forms. Wildlife sanctuary: Area within which animals are protected from the possible dangers. Biosphere reserve: Large protected area constructed for the conservation of biodiversity. None 5. Which of the following factors affect the endemic species? All of the above Destruction of their habitat. Increasing human population. Introduction of new species None 6. Annual migration does not occur in case of: Salmon Siberian Crane Arctic tern Salamander None 7. Bison, flying squirrel and Wolf are the fauna of Great Nicobar island Panchmari Biosphere reserve Satpura national park Jim corbett national part None 8. The largest among various protected areas for conservation of plants and animals :- national park wildlife sanctuary biosphere reserve botanical garden None 9. Select the most appropriate definition of 'endemic species': Those plants and animals that are found everywhere in the world. Those plants and animals that have been fossilised. Those plants and animals, which were once found in the world but are presently not found. Those plants and animals, which are found exclusively in a particular area of the world. None 10. The regions of the surface and atmosphere of earth occupied by living organisum is called : microsphere xerosphere lithosphere Biosphere None 11. The red data book keeps the record of Extinct animals and plants Endangered animals and plants Endemic animals and plants All of the above None 12. What is the purpose of deforestation? Building houses and factories Making furniture or using wood as fuel All of the above Procuring land for cultivation None 13. Just as a person moving from Delhi to Shimla to escape the heat of hot summer, thousands of migratory birds from Siberia and other extremely cold northern regions move to___________. Keoladeo National Park Manas National Park Western Ghats Jim Corbett National Park None 14. Many birds migrate to warmer climates in the spring. Find two reasons why?A. To get away from seasonal predators.B. Because of overpopulation in winter grounds.C. For better food supplies.D. To lay eggs and rear their young ones. A & D C & D A & C B & D None 15. Which of following options is correct about Indian alligator and Indian giant squirrel? Both are examples of extinct species. Both are examples of exotic species. Both are examples of endemic species. Both are found in Satpura National Park. None 16. What do you understand by the term migration Movement of an organism or a group of organisms Movement of natural habitat Movement of an organism or a group of organisms from its/their natural habitat to another place at a particular time every year. All of the above None 17. Barasingha and wild buffaloes, found in Satpura national park are known as All of the above Flora Fauna Species None 18. Match the following.List IList IIi. deforestationa. Urbanizationii. Natural cause of deforestationb. Cutting of forestsiii. Man-made cause of deforestationc. Droughts I- c, II- a, III- b I- b, II- c, III- a I- a, II- b, III- c I- b, II- a, III- c None 19. Full form of IUCN is : International unity of conservation of nature and natural resources International union of conservation of national parks and natural resources International union of conservation of national parks and nature International union of conservation of nature and natural resources None 20. 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