The ruins of two ancient cities, Harappa and Mohenjo-Daro (both in modern-day Pakistan), and the remnants of many other settlements, have revealed great clues to this mystery. Harappa was, in fact, such a rich discovery that the Indus Valley Civilization is also called the Harappan civilization.
Many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change. Some experts believe the drying of the Saraswati River, which began around 1900 BCE, was the main cause for climate change, while others conclude that a great flood struck the area.
The remains of the Indus Valley Civilization cities indicate remarkable organization; there were well-ordered wastewater drainage and trash collection systems, and possibly even public granaries and baths. Most city-dwellers were artisans and merchants grouped together in distinct neighborhoods.
Answer:
Bangladesh
Nepal
Explanation:
There are eight countries that fall into the region of South Asia. Out of these eight countries, only two have centrally located capitals. Those two countries are Bangladesh and Nepal. Bangladesh's capital is Dhaka, and it is located in the central part of the country. It is the most populated city in the country, and it is also one of the places in the world with highest population densities. Kathmandu is the capital of Nepal. Nepal doesn't really have a shape so that a city can be far away from the borders, but if we look at it in a longitudinal manner, its capital comes to be in the central part of the country. It is by far the most populated city in the country, and it is the political, economic, cultural, administrative center.
Answer:
1. Without a calendar we could not know when to celebrate any of the festivals on particular days. We would even get the days of the week confused after a while. We would not be able to tell when a year had gone by, so it would be hard to keep track of someone's age.
2. Without numbers we wouldn't be able to count or measure anything. We would forget our age one day, and possibly forget how to count. Also we wouldn't be able to tell time, unless we used the sun. It would make life very problematic.
3. It would take very long to get us somewhere. We could no longer travel with airplanes, since they use wheels to take off. Such a simple thing as going to the grocery store, would turn into a huge task. Traveling would take very long to do, or might be non-existent if we didn't use horses.
