Which of the following groups contains only biodegradable items?
A. Grass, DDT and flowers
B. Grass, wood and plastic
C. Fruit-peels, cake and glass
D. Cake, wood and grass
Answer:D
Which of the following groups contains only biodegradable items?
A. Grass, DDT and flowers B. Grass, wood and plastic C. Fruit-peels, cake and glass D. Cake, wood and grass