Ch-15 Our Environment (Exercise) Page264

Question 1:	Which of the following groups contain only biodegradable items? (a) Grass, flowers and leather (b) Grass, wood and plastic (c) Fruit-peels, cake and lime-juice (d) Cake, wood and grass
Answer :	(c)Fruit-peels, cake, and lime-juice (d)Cake, wood, and grass
Question 2:	Which of the following constitute 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 you on her scooter (d) All of the above
Answer :	(d) All of the above