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

Which of the following make up the food chain? (a) Grass, Wheat and Mango (b) Grass, Goat and Human (c) Goat, Cow and Elephant (d) Grass, Fish and Goat

Which of the following groups contains 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

How can you help in reducing the problem of waste disposal? Give any two methods.

What is ozone and how does it affect any ecosystem?

Give any two ways in which non-biodegradable substances would affect the environment.