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