Cleanliness is one of the most important factors for a comfortable life for people and animals. In nature, for example, in the underwater world, there are mechanisms for the purification of water areas. Many people are afraid of sharks, but few people realize that they play an important role in cleaning up the ocean. Comparable to vacuum cleaners underwater, they play a significant role in cleaning up the oceans by devouring sick animals and destroying waste. Also known in the world of underwater cleaning are sea sponges. They come in different shapes and sizes. Special cells can capture and process food particles suspended in water. In an hour, a sponge passes through itself a volume of water ten times its own volume, while it absorbs nutrients, harmful compounds and up to 90 percent of the bacteria in the water. Sponges are the most efficient marine “vacuum cleaners”. Sponges are considered simple organisms, but in reality they have a very complex structure, which we still poorly understand even now. People, like all nature, strive for purity. In particular, this led to the invention of such a device as a robot vacuum cleaner. Of course, such a complex device has a team of specialist inventors and engineers. Also, natural cleaners have their own constructor. Here is how this thought is expressed in Scripture at Psalm 103:24, 25: How many are your works, O Lord! You have done everything in wisdom; the earth is full of your works."
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