Microbes are tiny living organisms that are too small to be seen with the naked eye. They include bacteria, viruses, fungi, and protozoa. These microorganisms can be found almost everywhere, from the soil in our gardens to the water in our lakes. Some microbes are helpful, like those that help us digest food or produce yogurt, while others can cause diseases. Despite their small size, microbes play a big role in our world. They help break down organic matter, recycle nutrients, and even produce oxygen through processes like photosynthesis. Understanding microbes is essential for fields like medicine, agriculture, and environmental science, as they impact our health and the planet.