Explanations:The Harappan civilization, also known as the Indus Valley Civilization, was one of the earliest urban civilizations in the world, flourishing in the northwestern regions of the Indian subcontinent from around 3300 BCE to 1300 BCE. This civilization is renowned for its advanced urban planning and technological innovations, particularly in the areas of sanitation and drainage systems.
One of the most significant technological advancements of the Harappan civilization was the construction of indoor toilets. These toilets were typically located on the ground floor of houses and were connected to a sophisticated drainage system. The drainage system was designed to carry waste away from the living areas, which was a remarkable feat of engineering for the time. This system helped to maintain hygiene and prevent the spread of diseases, which was crucial for the health and well-being of the urban population.
The indoor toilets and the drainage system were part of a larger urban planning strategy that included well-organized streets, public baths, and granaries. The Harappans were among the first to implement such advanced urban planning techniques, which contributed to the longevity and prosperity of their cities.
However, the Harappan civilization eventually declined, and with it, many of their technological advancements were lost. The disappearance of the Harappans led to the disappearance of their advanced urban planning and sanitation systems, including the indoor toilets. This is why the correct answer is that indoor toilets died with the disappearance of the Harappans.
It is important to note that while the Harappans were known for their advanced urban planning and sanitation systems, they were not known for other technological advancements such as suspension bridges or sailboats. These technologies were not part of their known repertoire, and thus, they are not the correct answer to the question.
Understanding the technological advancements of the Harappan civilization is crucial for comprehending the development of urban planning and sanitation systems in ancient civilizations. The Harappans' contributions to these fields were significant and set a precedent for future urban developments in the region.