Our Environment

Which of the following groups contain only biodegradable items?

1. Grass, flowers and leather
2. Grass, wood and plastic
3. Fruit-peels, cake and lime-juice
4. Cake, wood and grass

Solution:

Glass and plastic are non-biodegradable items.

Correct Answer: B

Which of the following constitute a food-chain?

1. Grass, wheat and mango
2. Grass, goat and human
3. Goat, cow and elephant
4. Grass, fish and goat

Solution:

Grass, goat and human form a food chain as producers, herbivores and consumers.

Correct Answer: B