Educational infographic for World Soil Day highlighting compostable and non-compostable items.

The image provided is a worksheet related to composting, specifically for World Soil Day. The task involves categorizing items into two groups: What To Compost and What Not To Compost. Below is the solution with explanations:

---

What To Compost

These are organic materials that can break down naturally and enrich the soil when added to a compost pile.

1. Paper scraps and cardboard: These are carbon-rich materials (often called "browns") that provide structure to the compost.
2. Eggshells: They are rich in calcium and other minerals, which help improve soil health.
3. Yard trimmings: Grass clippings, leaves, and plant cuttings are excellent sources of nitrogen and carbon.
4. Nut shells: These decompose slowly but add texture and nutrients to the soil over time.

---

What Not To Compost

These are materials that should not be added to a compost pile because they can attract pests, create odors, or introduce harmful substances.

1. Fats and oils: These do not break down easily and can make the compost smell bad, attracting rodents and insects.
2. Dairy products: Similar to fats and oils, dairy products can cause odors and attract pests.
3. Produce stickers: These are typically made of plastic or synthetic materials that do not decompose.
4. Diseased plants: Adding diseased plants can spread pathogens to the compost and potentially harm other plants.

---

Explanation

- Composting Basics: Composting is the process of breaking down organic matter into nutrient-rich soil. It requires a balance of "greens" (nitrogen-rich materials like food scraps and grass) and "browns" (carbon-rich materials like paper and dried leaves).
- Why Some Items Are Excluded: Materials like fats, oils, and plastics do not decompose naturally and can disrupt the composting process. Diseased plants can introduce harmful organisms that could contaminate the compost.

---

Final Answer

- What To Compost: Paper scraps and cardboard, Eggshells, Yard trimmings, Nut shells
- What Not To Compost: Fats and oils, Dairy products, Produce stickers, Diseased plants

Boxed Final Answer:
\boxed{
\text{What To Compost: Paper scraps and cardboard, Eggshells, Yard trimmings, Nut shells} \\
\text{What Not To Compost: Fats and oils, Dairy products, Produce stickers, Diseased plants}
}