Question -
Answer -
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
c) Fruit peels, cake and lime juice
d) Cake, wood and grass
Above all are the groups that contain only biodegradable items. Since plastic is not a biodegradable substance, that group cannot be considered as a biodegradable.