This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Forests Our Lifeline > Class 7 Science Chapter 12 Forests Our Lifeline – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 12 Forests Our Lifeline Quiz 20 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following trees were promoted for building ships or railways? A) Firs and Pines. B) Bushes and creepers. C) Teak and Sal. D) Sheesham and Acasia. Show Answer Correct Answer: C) Teak and Sal. 2. Which of the following are decomposers? A) Trees and bushes. B) Bacteria and fungi. C) Ferns and mosses. D) None of these. Show Answer Correct Answer: B) Bacteria and fungi. 3. When we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This is called A) Up-side down phenomenon. B) Lateral inversion. C) Mirage. D) Left-right confusion. Show Answer Correct Answer: B) Lateral inversion. 4. A forest habitat which undergoes fragmentation can lose up to 45 percent of its biodiversity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. An adaptation that does not help organisms survive the long winter in the coniferous forest is A) Bright colors. B) Hibernation. C) Migration. D) Thick fur. Show Answer Correct Answer: A) Bright colors. 6. Where is the "The treated water" released to: A) It's released into the ocean. B) It's released to the local waterways. C) It's dumped in sewage water. D) None of the above. Show Answer Correct Answer: B) It's released to the local waterways. 7. What is the approximate height of the tallest trees in the Redwood forests of California? A) 450 feet. B) 350 feet. C) 250 feet. D) 150 feet. Show Answer Correct Answer: C) 250 feet. 8. $_{}$In Tropical Rainforests Forests which are the most important trees? A) Ebony, Rosewood and Mahogany. B) Sandalwood, Mahua and semul. C) Shisham, Rosewood and Bamboo. D) None of the above. Show Answer Correct Answer: A) Ebony, Rosewood and Mahogany. 9. The dark coloured substance on the forest floor is ..... A) Dekposer. B) Humus. C) Soil. D) None of these. Show Answer Correct Answer: B) Humus. 10. Forests consists of ..... A) ANIMAL. B) PLANTS. C) ABIOTIC COMPONENTS. D) ALL OF THESE. Show Answer Correct Answer: D) ALL OF THESE. 11. Products that we get from forests A) Wood. B) Cloth. C) Steel. D) None of the above. Show Answer Correct Answer: A) Wood. 12. Why is it important to protect kelp forests? (35:00) A) Only for aesthetic reasons. B) To preserve biodiversity and fight climate change. C) Kelp forests are harmful to marine life. D) They are not important to protect. Show Answer Correct Answer: B) To preserve biodiversity and fight climate change. 13. The forest keeps on growing and changing and can regenerate. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. We would NOT find this animal in the deciduous forest A) Squirrel. B) Deer. C) Bear. D) Giraffe. Show Answer Correct Answer: D) Giraffe. 15. The natural habitat of the Indian Lion is: A) Jim Corbett. B) Giving Forest. C) Dudhwa. D) Sunderbans. Show Answer Correct Answer: B) Giving Forest. 16. What is the roof or the cover formed by the tree branches in the upper regions called? A) Canopy. B) Shrub layer. C) Umbrella. D) Emergent layer. Show Answer Correct Answer: A) Canopy. 17. Which of these trees grow widely in the coniferous forests A) Pine. B) Bamboo. C) Rosemary. D) None of the above. Show Answer Correct Answer: A) Pine. 18. Ideally, ..... of the total area of a country should be under forests. A) 1/4. B) 1/3. C) 1/2. D) None of the above. Show Answer Correct Answer: B) 1/3. 19. Choose the answer of the second word pair that best matches the given word pair.Plant diversity:animal diversity A) Different habitats:diversity. B) Rain:precipitation. C) Sunlight:forest floor. D) Photosynthesis:carbon dioxide. Show Answer Correct Answer: A) Different habitats:diversity. 20. The monkey puzzle tree is the national tree of which country? A) Mexico. B) Chile. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chile. 21. How many layers does a Tropical Rain Forest have? A) 3. B) 4. C) 2. D) 1. Show Answer Correct Answer: B) 4. 22. Plants and trees become dormant in order to get read for winter. Why does this happen? A) Leaves fall off, which allows trees to store water and moisture to survive the winter. B) Because they look prettier in the winter without leaves. C) They don't have the energy to keep the leaves. D) None of the above. Show Answer Correct Answer: A) Leaves fall off, which allows trees to store water and moisture to survive the winter. 23. What is the impact of deforestation on the water cycle? A) Increases rainfall. B) Reduces evaporation. C) Disrupts precipitation patterns. D) Enhances groundwater recharge. Show Answer Correct Answer: C) Disrupts precipitation patterns. 24. Tiny hiding spots and homes for small creatures like insects and little animals. A) Microhabitats. B) Biogeographic Realm. C) Forest Ecosystem. D) Understory Layer. Show Answer Correct Answer: A) Microhabitats. 25. Which forest's soil can be described as nutrient deficient; rocky? A) Pine Forest. B) Broadleaf. C) Whiteland. D) All of the above. Show Answer Correct Answer: A) Pine Forest. 26. Plant names are written in Greek. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 27. Nyayakan 1 kawasan Geopark di Malaysia A) Bako State Park. B) Taman wetland. C) Langkawi Geopark. D) None of the above. Show Answer Correct Answer: C) Langkawi Geopark. 28. Which of the following is not true of deciduous forests? A) Has 4 seasons. B) Trees lose there leaves during fall. C) Averages 30-60 inches of precipitation annually. D) Receives nearly all precipitation during one season. Show Answer Correct Answer: D) Receives nearly all precipitation during one season. 29. Setting ..... is an approach to managing fisheries that can involve banning or restricting fishing of certain species. A) Traps. B) No-fish zones. C) Target populations. D) Fishing limits. Show Answer Correct Answer: D) Fishing limits. 30. Natural vegetation A) Grow naturally without any human interference. B) Grow naturally with the help of human interference. C) Both of the above. D) None of the above. Show Answer Correct Answer: A) Grow naturally without any human interference. 31. Laurel Spruce and Deodar trees are found in ..... A) Montane Forest. B) Tropical Evergreen Forest. C) All the above. D) None of the above. Show Answer Correct Answer: A) Montane Forest. 32. If forest disappear what will be increased? A) Carbon dioxide. B) Nitrogen. C) Hydrogen. D) Oxygen. Show Answer Correct Answer: A) Carbon dioxide. 33. Forests cover about what % of earth's surface A) 15%. B) 31%. C) 10%. D) 50%. Show Answer Correct Answer: B) 31%. 34. ..... occurs when the leaves use the sun's energy to convert carbon dioxide into food for a tree to grow. In the process, oxygen is created. A) Abiotic Facts. B) Deforestation. C) Photosynthesis. D) Transpiration. Show Answer Correct Answer: C) Photosynthesis. 35. What KEY character tells MOST of the story? A) Dr. Gibbs. B) Emily. C) Mr. Webb. D) Stage Manager. Show Answer Correct Answer: D) Stage Manager. 36. In the absence of Forests /Plants/Trees ..... A) Global Warming will be caused. B) Biodiversity will be destroyed. C) Soil Erosion. D) All the above. Show Answer Correct Answer: D) All the above. 37. We obtain a variety of products from the ..... that surround us. A) Forests. B) Barren land. C) Marshy land. D) Hills. Show Answer Correct Answer: A) Forests. 38. Which is the largest hot desert in the world?a. Tharb. Saharac. Atacamad. Gobi A) B. B) C. C) D. D) A. Show Answer Correct Answer: A) B. 39. Human beings cut forests because of- A) For thier family. B) Just for fun. C) Need some trees for specific use. D) None of the above. Show Answer Correct Answer: C) Need some trees for specific use. 40. The Bhil men live in states of ..... A) Eastern and central India. B) Western and central India. C) All the above. D) None of the above. Show Answer Correct Answer: B) Western and central India. 41. Name the Different Stages of a Mountain Forest A) 1. Snow Line2. Coniferous Forest3. Wet hill forest4.Alpine Grasslands. B) 1.Snow Line2. Moses and Lichens3. Alpine Grasslands4.Coniferous Forests5. Wet hill forests. C) 1.Wet Hill forest2.Coniferous Forest3. Alpine Grasslands4.Moses and Lichens. D) None-Of-These. Show Answer Correct Answer: B) 1.Snow Line2. Moses and Lichens3. Alpine Grasslands4.Coniferous Forests5. Wet hill forests. 42. Forests provide us with products such as- A) Plastics. B) Phone. C) Medicine. D) Utensils. Show Answer Correct Answer: C) Medicine. 43. Raising fish for food in an artificial pond is known as A) Harvesting. B) Trawling. C) Aquaculture. D) Fish farming. Show Answer Correct Answer: C) Aquaculture. 44. Tropical rain forests are threatened by A) Deforestation and the trade of native plants and animals. B) A decrease in the average temperature at the equator. C) A decrease in rainfall at the equator. D) A thinning of the soil. Show Answer Correct Answer: A) Deforestation and the trade of native plants and animals. 45. Desert vegetation is found in areas with A) Moderate rainfall. B) Low rainfall. C) Heavy rainfall. D) None of the above. Show Answer Correct Answer: B) Low rainfall. 46. Which animal would you expect to see in the coniferous forest? A) Elephant. B) Alligator. C) Moose. D) None of the above. Show Answer Correct Answer: C) Moose. 47. Doctor and Mrs. Gibbs have which two children? A) George and Rebecca. B) Wally and Emily. C) Robert and Henry. D) Sunshine and SarahMoon. Show Answer Correct Answer: A) George and Rebecca. 48. As the distance of the object from the mirror increases the distance of the image also increases A) True. B) False. C) Both. D) None. Show Answer Correct Answer: A) True. 49. Taxol helps in fighting ..... A) Cancer. B) Malaria. C) Crown. D) None of the above. Show Answer Correct Answer: A) Cancer. 50. The Sunderbans has ..... forests. A) Deciduous. B) Evergreen. C) Mangrove. D) Thorn. Show Answer Correct Answer: C) Mangrove. 51. A tree that sheds its leaves at a particular time of the year is A) Deciduous. B) Tropical. C) Coniferous. D) Evergreen. Show Answer Correct Answer: A) Deciduous. 52. Project tiger was launched in ..... to ..... population of tigers A) 1743, decrease. B) 3339, decrease. C) 1973, decrease. D) 1973, increase. Show Answer Correct Answer: D) 1973, increase. 53. Shrubs and ..... grow on the forest floor because the forest floor doesn't see much sunlight. A) Cactus. B) Maple. C) Deciduous plants. D) Moss. Show Answer Correct Answer: D) Moss. 54. ..... % people alone depend on forests A) 100%. B) 80%. C) 70%. D) None of the above. Show Answer Correct Answer: B) 80%. 55. What is the climax of 'My First Lifeline'? A) The protagonist loses hope. B) The protagonist builds a shelter. C) The protagonist finds the lifeline. D) The protagonist is rescued. Show Answer Correct Answer: D) The protagonist is rescued. 56. In the name of forest conservation large scale evictions occurred during the year ..... A) 1920. B) 1930. C) 1940. D) None of the above. Show Answer Correct Answer: A) 1920. 57. Plants have adapted many ways to spread the pollen and seeds that help the plant be able toreproduce ..... help attract insects and animals to spread pollen to other areas, while ..... helpto spread seeds to other areas. A) Fruits; leaves. B) Roots; Flowers. C) Flowers; fruits. D) Leaves; roots. Show Answer Correct Answer: C) Flowers; fruits. 58. Which one of the following is not a form of abiotic resource? A) Forests. B) Land. C) Minerals. D) None of the above. Show Answer Correct Answer: A) Forests. 59. What is the impact of coastal development on kelp forests? A) It contributes to habitat restoration. B) It has no impact on kelp forests. C) It fragments kelp habitats and degrades water quality. D) It supports conservation efforts. Show Answer Correct Answer: C) It fragments kelp habitats and degrades water quality. 60. How many layers does a forest have? A) Two. B) Five. C) Four. D) Three. Show Answer Correct Answer: C) Four. ← PreviousNext →Related QuizzesScience QuizzesClass 7 QuizzesClass 7 Science Chapter 12 Forests Our Lifeline Quiz 1Class 7 Science Chapter 12 Forests Our Lifeline Quiz 2Class 7 Science Chapter 12 Forests Our Lifeline Quiz 3Class 7 Science Chapter 12 Forests Our Lifeline Quiz 4Class 7 Science Chapter 12 Forests Our Lifeline Quiz 5Class 7 Science Chapter 12 Forests Our Lifeline Quiz 6Class 7 Science Chapter 12 Forests Our Lifeline Quiz 7Class 7 Science Chapter 12 Forests Our Lifeline Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books