Explanations for the 10 biodegradable materials and 10 non-biodegradable materials follows

Biodegradable:

1. Paper - Paper is made from wood pulp and is biodegradable. When left in the environment, it will eventually break down and decompose, returning its nutrients to the soil.

2. Fruit waste - Fruit waste, such as banana peels and apple cores, is biodegradable. When discarded in nature, it will break down and provide nutrients to the soil.

3. Cotton - Cotton is a natural fiber that is biodegradable. When discarded, it will eventually break down and decompose, returning its nutrients to the soil.

4. Leaves - Leaves are biodegradable and will naturally decompose when left in the environment. They can provide valuable nutrients to the soil and help to maintain healthy ecosystems.

5. Food waste - Food waste, such as vegetable scraps and eggshells, is biodegradable. When discarded in nature, it will break down and provide valuable nutrients to the soil.

6. Wood - Wood is a natural material that is biodegradable. When left in the environment, it will eventually break down and return its nutrients to the soil.

7. Grass clippings - Grass clippings are biodegradable and will naturally decompose when left in the environment. They can provide valuable nutrients to the soil and help to maintain healthy ecosystems.

8. Bioplastics - Bioplastics are made from natural materials and are biodegradable. They can be used as a more environmentally-friendly alternative to traditional plastics.

9. Egg cartons - Egg cartons are often made from biodegradable materials such as paper or cardboard. When discarded, they will eventually break down and decompose.

10. Food packaging made from plant-based materials - Food packaging made from plant-based materials, such as cornstarch, is biodegradable. It can be composted and will break down over time.

Non-biodegradable:

1. Plastic bags - Plastic bags are made from synthetic materials that are not biodegradable. They can take hundreds of years to break down, and in the meantime, can harm wildlife and contribute to pollution.

2. Styrofoam - Styrofoam, also known as expanded polystyrene foam, is not biodegradable. It can take thousands of years to decompose and can cause harm to wildlife and the environment.

3. Aluminum foil - Aluminum foil is not biodegradable. It can take hundreds of years to decompose and can contribute to pollution if not disposed of properly.

4. Glass - Glass is not biodegradable and can take millions of years to decompose. However, it is recyclable and can be reused indefinitely.

5. Batteries - Batteries are not biodegradable and can take hundreds of years to decompose. They contain toxic chemicals that can harm the environment and should be disposed of properly at designated collection sites.

6. Plastic bottles - Plastic bottles are made from synthetic materials that are not biodegradable. They can take hundreds of years to break down and can cause harm to wildlife and the environment if not disposed of properly.

7. Polycarbonate - Polycarbonate is a type of plastic that is not biodegradable. It is commonly used in products such as water bottles and eyeglasses.

8. Rubber tires - Rubber tires are not biodegradable and can take hundreds of years to decompose. They can also release harmful chemicals into the environment if not disposed of properly.

9. Synthetic fabrics - Synthetic fabrics such as polyester and nylon are not biodegradable. They can take hundreds of years to decompose and can contribute to pollution if not disposed of properly.

10. Styrene-acrylonitrile - Styrene-acrylonitrile (SAN) is a type of plastic that is not biodegradable. It is commonly used in products such as automotive parts and electronic devices. When not disposed of properly, SAN can contribute to pollution and harm the environment.