Ncert – class 8- science – Chapter 5: Conservation of Plants and Animals 2 Welcome to your Ncert - class 8- science - Chapter 5: Conservation of Plants and Animals 2 1. Which of the following statements about recycling of paper is incorrect? It requires more harmful chemicals as compared to those used in paper making. It promotes the conservation of environment. It consumes less energy as compared to the energy consumed for paper making. It reduces deforestation. None 2. Which one of the following changes may occur due to desertification? Decrease in atmosphere temperature Increased chances of foods Conversion of fertile land into a desert Increase in water holding capacity of soil None 3. Which one of the following statements is true about a biosphere reserve? There are no other protected area within its limits. It is a protected area where only endemic species live. It is meant only for the conservation of plants and animals. It is meant to conserve both, the biodiversity and the culture of that area. None 4. The most important strategy for the conservation of biodiversity is the establishment of Biosphere reserves National parks Wild life sanctuaries Botanical gardens None 5. The primary objective of Project Tiger is to increase the population of tigers as they are a threatened species protect tigers by changing their habitat protect tigers by keeping them in the enclosures of zoos increase the population of tigers as they are an endangered species None 6. Migratory birds fly to far off places in a particular season of the year because that place becomes Unsafe Very cold Very hot None of the above None 7. Large areas of protected land for conservation of wildlife, plant and animals resources and traditional life of the tribals living in the area are known as Zoological parks National parks Sancturies Biosphere reserves None 8. Flora and fauna can be defined as: Flora- The aquatic life of particular area Fauna- The community of animals in a specific region or habitat Flora- The plant life of particular area Fauna- The community of animals in a specific region or habitat Flora- The community of animals in a specific region or habitat Fauna- The plant life of particular area Flora- The plants of same species in a particular area Fauna- Animals of same species in a particular area None 9. Assertion: Red data book has a record of all animals. Reason: Endangered species need to be identified for giving them proper protection. The Assertion is true but the Reason is false. Both Assertion and Reason are true and the Reason is the correct explanation for the Assertion. Both Assertion and Reason are true but the Reason is not the correct explanation for the Assertion. The Assertion is false but the Reason is true. None 10. Which of the following statements about reforestation is incorrect? It involves the cutting of trees for industrial purposes. It is an eco-friendly practice. It helps in rehabilation of an area. It involves the planting of new trees in deforested areas. None 11. A group of organisms which are capable of .............. is called as population. Both A and B Linking None of the above Interbreeding None 12. Given below are some possible reasons for a sharp decline in the population of the species given in the figure. Which of the following is correct?(i) Cleared forests (ii) Flooded large areas(iii) Polluted air and water(iv) Scarcity of food (i), (ii), (iii) and (iv) (i) and (iv) (i) and (ii) (i), (ii) and (iv) None 13. Species native to a particular habitat is known as: Threatened species Extinct species Endemic species Endangered species None 14. Assertion: Project Tiger was launched to improve the tiger population. Reason: Tiger is an endangered animal in India. Both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion. Both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion. Both the Assertion and the Reason are false The Assertion is true but the Reason is false. None 15. Which of the following defines the effect of deforestation on villages? All of the above Less fertile soil Top layer of the soil will be easily removed Soil erosion None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
