No Microrganisms are not animals.
Decay of leaves is primarily caused by fungi and bacteria. These microorganisms break down the organic matter in leaves, releasing nutrients back into the soil for other plants to use. Additionally, some insects and invertebrates may also play a role in the decomposition process by physically breaking down the leaves.
yes
Bacteria are prokaryotic cells that cause disease and decay.
Fallen leaves would decay very rapidly in the rainforest because of its favourable temperature and abundance of microorganisms. In contrast, fallen leaves would decay very slowly in regions that are cold and sparsely populated by even bacteria such as the tundra.
Leaves rot due to decomposition. It is the natural process of a life cycle and the decay of the leaves is carried out by bacteria and fungi.
microrganisms
Lactobacillus species
IM DUMB
The instability of the nuclei is the basic cause of radioactive decay.
chemical change
I don't think it will be a fungus. It's more likely that small creatures or bacteria will decompose the leaves. It will rot and eventually disintegrate into the soil. However, maybe this can also be caused by other plants that cause the leaves to rot.