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