This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Forests Our Lifeline > Class 7 Science Chapter 12 Forests Our Lifeline – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 12 Forests Our Lifeline Quiz 15 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which biome has less than 10 inches of rain each year? A) Temperate Deciduous Forest. B) Tropical Rainforest. C) Desert. D) Savanna. Show Answer Correct Answer: C) Desert. 2. Water, in liquid or solid form, that falls to earth A) Weather. B) Precipitation. C) Front. D) None of the above. Show Answer Correct Answer: B) Precipitation. 3. The temperature at which air is saturated with water and condensation can occur A) Dew point. B) Weather. C) Relative humidity. D) None of the above. Show Answer Correct Answer: A) Dew point. 4. The Deciduous forests grow in these districts of Telangana A) Adilabad. B) Bhadrakokotagudem. C) Khammam. D) All the above. Show Answer Correct Answer: D) All the above. 5. ..... forests are found in areas with very little rainfall. A) Evergreen. B) Monsoon. C) Thorn. D) Deciduous. Show Answer Correct Answer: C) Thorn. 6. The total area under forests should be A) 1/3. B) 1/4. C) 2/3. D) 1/5. Show Answer Correct Answer: A) 1/3. 7. The role of decomposers is to: A) Take minerals from the soil. B) Feed on other living organisms. C) Break down dead plants and animals. D) Use energy from the sun. Show Answer Correct Answer: C) Break down dead plants and animals. 8. Which of the following is NOT a service forests provide? A) Improving water quality. B) Replenishing carbon dioxide. C) Minimizing soil erosion. D) Storing carbon dioxide. Show Answer Correct Answer: B) Replenishing carbon dioxide. 9. Which of these is a forest product? A) Silk. B) Gum. C) Wood. D) All of these. Show Answer Correct Answer: D) All of these. 10. Where are Tropical Evergreen forests found in India? A) Andaman & Nicobar. B) Gujarat. C) All the above. D) None of the above. Show Answer Correct Answer: A) Andaman & Nicobar. 11. Explain why there is no waste in forests. A) The decomposers decompose the dead organisms. B) The decomposed matter gets absorbed by plants in nutrients. C) Both A and B. D) None of these. Show Answer Correct Answer: C) Both A and B. 12. Based on information presented in the selection, what can the reader conclude about the black-backed woodpecker? A) It prefers to eat small insects but also consumes a variety of fruits and seeds. B) It is better protected from danger when living in a burned forest than when living in an unburned forest. C) It moves from forests in Canada to forests in the United States each year. D) It leaves the burned forest because other birds invade its habitat. Show Answer Correct Answer: B) It is better protected from danger when living in a burned forest than when living in an unburned forest. 13. Planting trees in an area that was not a forest earlier is called ..... A) Deforestation. B) Reforestation. C) Afforestation. D) None of the above. Show Answer Correct Answer: C) Afforestation. 14. In which layer of the soil would you find humus? A) Top layer. B) Lowermost layer. C) All the above. D) None of the above. Show Answer Correct Answer: A) Top layer. 15. Forest with acidic soil A) Tropical rain forest. B) Temperate rain forest. C) Taiga. D) Temperate deciduous forest. Show Answer Correct Answer: C) Taiga. 16. There are various types of grasslands, including temperate grasslands (prairies, steppes) and ..... A) Swamps. B) Savannahs. C) Marshes. D) Rainforests. Show Answer Correct Answer: B) Savannahs. 17. How are coniferous trees different than other trees? A) They have cones and stay green all year. B) They lose their leaves in winter. C) They produce seeds in their flowers. D) None of the above. Show Answer Correct Answer: A) They have cones and stay green all year. 18. If a plant shows growth, it A) Withers and dries up. B) Lives and becomes bigger. C) Provides homes for animals. D) Provides seeds for other plants. Show Answer Correct Answer: B) Lives and becomes bigger. 19. What percentage of forests in the United States are privately owned? A) 15. B) 64. C) 32. D) 58. Show Answer Correct Answer: D) 58. 20. Mountain Forests are found in A) West-North. B) North-East. C) Eastern Ghats. D) Western Ghats. Show Answer Correct Answer: B) North-East. 21. Rains may also damage the A) Roots. B) Soil. C) Humus. D) None of these. Show Answer Correct Answer: B) Soil. 22. What makes kelp a sustainable food source? (6:36) A) It grows faster than wheat and doesn't use freshwater. B) Kelp cannot be eaten. C) It needs pesticides to grow. D) It requires a lot of freshwater to grow. Show Answer Correct Answer: A) It grows faster than wheat and doesn't use freshwater. 23. Arboreal animals live in the ..... layer. A) Forestfloor. B) Understorey. C) Canopy. D) Crown. Show Answer Correct Answer: C) Canopy. 24. Select which animals life at the TOP part of a kelp forest. A) Sea stars. B) Eels. C) Sea otters. D) Jellyfish. E) Lobsters. Show Answer Correct Answer: C) Sea otters. 25. Erosion is one disadvantage of ..... A) Sustainable wood. B) Certified wood. C) Clear-cutting. D) Selective cutting. Show Answer Correct Answer: C) Clear-cutting. 26. Which biome has the most BIODIVERSITY, also known as having the most types of organisms? A) The Temperate Forest, because it has the least number of species living there. B) The Taiga, because it has the most different species living there. C) The Tropical Rainforest, because it has the most different species living there. D) The Taiga, because it has the least number of species living there. Show Answer Correct Answer: C) The Tropical Rainforest, because it has the most different species living there. 27. Why did the author include a caption with the picture? (Jacob Villalobos) A) To describe what is a food forest. B) To describe a location of a food forest. C) To a LeResche speech. D) The varieties of fruit and nut trees around the U.S. Show Answer Correct Answer: B) To describe a location of a food forest. 28. Which of the following best describes a tropical rain forest? A) Dense, thick soil good for growing. B) Animals with specialized adaptations to avoid competition. C) Very few trees due to the poor soil quality. D) Most species very similar due to constant temps and rainfall. Show Answer Correct Answer: B) Animals with specialized adaptations to avoid competition. 29. Which of the following state has got largest forest in the country? A) Madhya pradesh. B) Maharashtra. C) Chhatisgarh. D) Arunachal Pradesh. Show Answer Correct Answer: A) Madhya pradesh. 30. Dead or dying trees that provide food for insects, shelter and nesting spots A) Source of clean water. B) Canopy. C) Snags. D) Understory. Show Answer Correct Answer: C) Snags. 31. Plants release oxygen into the atmosphere during photosynthesis. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 32. What is the annual rainfall or precipitation per year in Boreal Forests? A) 12-20 inches. B) 30-60 inches. C) 60-100 inches. D) 100+ inches. Show Answer Correct Answer: A) 12-20 inches. 33. Which type of organism always occurs at the first step in every food chain? A) Scavenger. B) Heterotroph. C) Autotroph. D) Saproph. Show Answer Correct Answer: C) Autotroph. 34. Forest increases ..... A) Rainfall. B) Soil erosion. C) Flood. D) Air pollution. Show Answer Correct Answer: A) Rainfall. 35. Which trees are the dominant species in coniferous forests? A) Pines, spruces, firs, and larches. B) Palm trees. C) Oak trees. D) Maple trees. Show Answer Correct Answer: A) Pines, spruces, firs, and larches. 36. No ..... no forest floor. A) Producers. B) Consumers. C) Decomposersers. D) Fungi. Show Answer Correct Answer: C) Decomposersers. 37. The force that a column of air applies on the air or surface below it A) Dew point. B) Air pressure. C) Humidity. D) None of the above. Show Answer Correct Answer: B) Air pressure. 38. Which of the following would you prefer to use while reading small letters found in a dictionary?(a) A convex lens(b) A convex mirror(c) A concave lens(d) Either (a) or (b) A) C. B) D. C) B. D) A. Show Answer Correct Answer: D) A. 39. This fishing method has been outlawed to help manage resources for a sustainable yield. A) Using nets with a large mesh size. B) Poisoning fish. C) Maintaining aquaculture bays. D) Fishing off the coast of California and New England. Show Answer Correct Answer: B) Poisoning fish. 40. Who is Howie Newsome? A) Town drunk. B) Milkman. C) Doctor. D) Paper boy. Show Answer Correct Answer: B) Milkman. 41. A reserved area for the endangered species A) Biodiversity. B) Wildlife sanctuary. C) National park. D) None of the above. Show Answer Correct Answer: B) Wildlife sanctuary. 42. Forests provide a livelihood for more than ..... people around the world. A) 13 million. B) 30 million. C) 1.3 million. D) 1.3 billion. Show Answer Correct Answer: A) 13 million. 43. Which of the following sentences uses 'lifeline' correctly? A) The lifeline was a beautiful flower. B) He threw a lifeline to the drowning man. C) She painted a lifeline on the wall. D) The lifeline was a delicious meal. Show Answer Correct Answer: B) He threw a lifeline to the drowning man. 44. Forests play a crucial role in the carbon cycle by: A) Releasing carbon dioxide. B) Absorbing carbon dioxide. C) Producing methane. D) None of the above. Show Answer Correct Answer: B) Absorbing carbon dioxide. 45. Find out the name of our National tree. A) Banyan. B) Neem. C) Ashoka. D) Ficus religiosa. Show Answer Correct Answer: A) Banyan. 46. The process by which new tree seedlings become established after forest trees have been harvested or have died from natural or man-made cause. A) Forest regeneration. B) None of these. C) All the above. D) None of the above. Show Answer Correct Answer: A) Forest regeneration. 47. What is a simple forest ecosystem? A) An ecosystem comprised of many species of trees. B) An ecosystem comprised of lots of plants. C) An ecosystem comprised of a few plants. D) An ecosystem comprised of one species of tree. Show Answer Correct Answer: D) An ecosystem comprised of one species of tree. 48. The area of forest in our state is A) 30, 064 sq kms. B) 26, 904 sq kms. C) 30, 904 sq kms. D) 15, 604 sq kms. Show Answer Correct Answer: B) 26, 904 sq kms. 49. Taigas are found between which two biomes? A) Grasslands and desert. B) Tundra and temperate forests. C) Desert and rainforest. D) Ocean and rivers. Show Answer Correct Answer: B) Tundra and temperate forests. 50. One feature of the desert vegetation A) Thick barks. B) Needle shaped leaves. C) Broad leaves. D) None of the above. Show Answer Correct Answer: A) Thick barks. 51. Tidal forests are also called- A) Sanctuaries. B) Islands. C) Plateaus. D) Mangroves. Show Answer Correct Answer: D) Mangroves. 52. Plants and animals in a forest are not dependent on one another. True or false? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 53. What was the primary threat to our forests when early settlers arrived and traveled west through America? A) Clearing for agricultural land. B) Logging for timber. C) Harvest for maple syrup. D) None of the above. Show Answer Correct Answer: B) Logging for timber. 54. In Steppe climatic region which type of agriculture practiceda. Extensiveb. Commercialc. Intensived. Shifting A) D. B) A. C) C. D) B. Show Answer Correct Answer: B) A. 55. What is the main economic significance of kelp forests? A) Supporting commercial activities like fishing and aquaculture. B) Contributing to climate change. C) Disrupting ecosystem dynamics. D) Causing coastal erosion. Show Answer Correct Answer: A) Supporting commercial activities like fishing and aquaculture. 56. Which is the uppermost layer of the forest A) Canopy. B) Emergent. C) Understory. D) Forest Floor. Show Answer Correct Answer: B) Emergent. 57. What is the role of abalone in shaping kelp forest structure? A) They are grazers that feed on kelp and other algae. B) They keep sharks away. C) They are apex predators. D) They are keystone species. Show Answer Correct Answer: A) They are grazers that feed on kelp and other algae. 58. Which of these adaptations do most taiga mammals have? A) Slick scales to repel water. B) Thick fur for warmth. C) Long arms to climb trees. D) Large ears to hear predators. Show Answer Correct Answer: B) Thick fur for warmth. 59. What is an effective way of getting local people to help save their forests? A) Education about why the forests are important. B) Paying people so they don't have to farm the land. C) Relocating people away from the forests. D) Providing people with free water and fruit. Show Answer Correct Answer: A) Education about why the forests are important. 60. The more complex an ecosystem, the ..... resistant it is to either change or damage by insects, diseases, ice storms, fire and other disasters A) Less. B) More. C) All the above. D) None of the above. Show Answer Correct Answer: B) More. ← 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