The biodegradable items from the list are:

• Old clothes

• Wilted flowers

• Pencil shavings

• Vegetable peels

Explanation:

i. Polythene bags are made of plastic. These cannot be broken down by any microorganism. Hence, they are non-biodegradable

ii. Old clothes are made of cotton and cotton being a natural product is biodegradable which means it breaks down into simpler products.

iii. Wilted flowers are also natural products fallen from the plants/trees making it a biodegradable item.

iv. Pencil shaving is made from wood which is also a natural product. It is hence biodegradable.

v. Glass bangles made up of glass remains intact in the environment and do not decompose. Hence, they are non-biodegradable.

vi. The bronze statue made up of bronze corrodes very slowly and cannot be decomposed. Hence, the bronze statue is a non-biodegradable item.

vii. Vegetable peels are natural products obtained from the plants.

Hence, old clothes, wilted flowers, pencil shaving and vegetable peels are biodegradable because they are broken down to simple products.