NCERT Class 10 Science Chapter 13 Our Environment Solutions
NCERT Class 10 Science Chapter 13 Our Environment Solutions Our Environment NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Which of the following groups contain only biodegradable item ? (a) Grass, flowers and leather (b) Grass, wood and plastic (c) Fruit peels, cake and lime juice (d) Cake, wood and grass Answer: (a) Grass, flowers and leather. Question 2 Which of the following constitutes a food-chain ? (a) Grass, wheat and mango (b) Grass, goat and human (c) Goat, cow and elephant (d) Grass, fish and goat Answer: (b) Grass, goat and human. Question 3 Which of the following are environment friendly practices ? (a) Carrying cloth-bags to put purchases in while shopping (b) Switching off unnecessary lights and fans (c) Walking to school instead of getting your mother to drop on her scooter (d) All of the above Answer: (d) All of the above. Question 4 What will happen if we kill all the organisms in one trophic level ? Answer: The food chain would end and ecological balance wo...