What do you think is the greatest invention that you use today? Explain in 4 sentences

Indoor Plumbing.

Primarily, it has provided a greater level of sanitation in modern life. The use of running water to wash your hands and bathe reduces the likelihood of spreading germs and bacteria. The ability to cleanly remove waste away from heavily populated areas allows for cleaner air, thus, fewer respiratory related illnesses. Ultimately, it has propelled civilizations towards the better quality of life that we enjoy today.