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