Natural substances are materials that come from nature and are not made by humans. They can be found in the earth, air, and water, and include things like plants, minerals, and animals. These substances are essential for life, providing food, shelter, and resources for various ecosystems.
Many natural substances have important uses in our daily lives. For example, herbs and spices from plants are used in cooking, while minerals like salt and iron are vital for health. Understanding and preserving these natural substances is crucial for maintaining a balanced environment and supporting human well-being.