Natural bodies of water are formations created by nature, such as rivers, lakes, ponds, and oceans. These bodies of water play a crucial role in the ecosystem, providing habitats for various plants and animals. They also serve as important resources for human activities, including drinking water, recreation, and transportation. These water bodies can vary greatly in size and depth. For example, rivers can flow for thousands of miles, while ponds are typically smaller and shallower. Lakes can be vast and deep, like the Great Lakes, while oceans cover over 70% of the Earth's surface, influencing climate and weather patterns.