Read the following excerpt carefully and answer the questions that follow:
THE MOST ANCIENT SYSTEM YET DISCOVERED
About the drains, Mackay noted: “It is certainly the most complete ancient System as yet discovered.” Every house was connected to the street drains. The main channels were made of bricks set in mortar.
They were covered with loose bricks that could be removed for cleaning. In some cases, limestone was used for the covers. House drains first emptied into a sump or cesspit into which solid matter settled while wastewater flowed out into the street drains. Very long drainage channels were provided at intervals with sumps for Cleaning. It is a wonder of archaeology that “little heaps of material, mostly sand, have frequently been found lying alongside drainage channels, which shows… that the debris was not always carted away when the drain was cleared.” From Ernest Mackay, Early Indus Civilization, 1948 drainage systems were not unique to the larger cities but were found in smaller settlements as well. At Lothal for example, while houses were built of mud bricks, drains were made from burnt bricks.
i. Why has MacKay described this system as complete ancient
drainage system?
ii. Was the drainage system similar in large & small settlements of of Harappa? Support your answer with Facts.
iii. How were the drains covered?
i. Mackay has described this system as a complete ancient drainage system because it was unique, well planned, clean and systematic. It was just like the contemporary civilization especially the drainage system. 2
ii. Yes, drainage systems were similar in large and small settlements of Harappa. For example, in a small settlement like the Lethal drainage and a large city like Mohenjo Daro.
iii. The features of the drainage system were:
a) Every house was connected with the street drain.
b) The main channel was made of brick set in mortar and was covered with loose bricks that could be removed for cleaning.
c) In some cases, limestone was used for the covers.
d) House drains first emptied into a specific cesspit into which the solid matter settled while the wastewater flowed down into the street drain.
e) A very long drainage channel was also provided at intervals with sumps for cleaning
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