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