Answer:
Bacteria
Step-by-step explanation:
Microbes are tiny living things—so tiny that you need a microscope to see them. Yet unseen microbes have a collective mass greater than all the animals on the planet. They're everywhere! You can find microbes (also called microorganisms) in soil, lakes, oceans, and air. You'll find them on your own body, both inside and out. And even though we can't see them, microbes have a huge impact on us and our environment. In fact, we couldn't live without them.Without microbes, the earth would be filled with corpses. Bacteria break down (or decompose) dead organisms, animal waste, and plant litter to obtain nutrients. But microbes don't just eat nature's waste, they recycle it. The process of decomposition releases chemicals (such as carbon, nitrogen, and phosphorus) that can be used to build new plants and animals. That is, chemicals that used to be a flower or a vegetable will eventually become part of another living thing. So the next time you see cut flowers decay or a garden vegetable rot, remember, you're really seeing microbes at work.