Ncert- science – class 7- Chapter 12 – Forests: Our Lifeline 1 Welcome to your Ncert- science – class 7- Chapter 12 – Forests: Our Lifeline 1 1. Plants convert CO2 into O22 during Transpiration Translocation Photosynthesis Respiration None 2. Which of the following serve as green lungs Greenhouse gases Forests Green pigment of the plants Kitchen gardens None 3. Which of the following is not the name of a tree? Kachnar Porcupine Sal Teak None 4. Which of the products is not obtained from a forest? Honey Gum Ginger Catechu None 5. Process of eating and being eaten is called Food chain Food nature Food habit Food web None 6. Which one is not obtained from plants? Medicines Furniture Petrol Paper None 7. Humus acts as a fertiliser manure soil replenisher Both soil replenisher and manure None 8. A carnivore occupies the last place in the food chain. After its death, which group of organisms feed on it? Autotrophs Herbivores Decomposers Omnivores None 9. Which of the following has the strongest stem? A climber A creeper A bush A tree None 10. Forests are not responsible for creating flood conditions. maintaining the flow of water into the streams. absorbing rainwater and maintaining water table. providing medicinal plants. None 11. Which among the following forest animals is the smallest? Boar Fox Porcupine Bison None 12. The branchy part of a tree above the stem is known as humus crown canopy sapling None 13. Rishi observed a tall tree in the forest bearing small green coloured fruits. His mother told him that these fruits are rich in vitamin C and are sour in taste. They are used to cure diseases like scurvy. Identify the tree. Fig Sal Amla Teak None 14. Which of the following two are not involved in the pollination process? Beetles and bees Spiders and lizards Insects and birds Flies and birds None 15. Boojho visited a forest near his town with his classmates and his teacher. As they were entering the forest, their class teacher told them not to make a noise in the forest as noise could disturb the birds animals Both birds and animals plants None 16. Pick the option which gives the names of a tree and an animal, respectively from the following. Neem, palash Sal, khair Semal, hornbill Chinkara, blue bull None 17. Which among the following is the correct sequence of food chain in a forest? Grass insects snake frog eagle Grass insects frog eagle snake Grass insects eagle frog snake Grass insects frog snake eagle None 18. Mountains appear green due to Green coloured stone Lack of oxygen Absence of plants Presence of plants None 19. Which of the following substance is not made of forest product? Polythene Chair Window Door None 20. Which of the following is not prepared from the wood obtained from forest? Matchsticks Paper Thermocol Plywood 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.
