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