👉 A spongeless environment is one that does not contain any substances that are known to cause or contribute to the production of mold, mildew, or other harmful microorganisms. This means that there are no sources of bacteria, fungi, or other microorganisms present in the environment. In a spongeless environment, the only source of microorganisms would be natural organic matter such as soil, water, and plants. Spongeless environments can be found in various types of habitats such as wetlands, forests