Question

The most ancient
system yet discovered
ovides examples
e centred on a
. The courtyard
such as cooking
g hot and dry
is an apparent
windows in the
ides, the main
V of the interior
om paved with
ugh the wall to
ave remains of
r the roof. Many
that could be
rhaps used by
d that the total
s about 700.
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 and 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 waste water
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
Civilisation, 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​

Answer 1

Answer:

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Answer 2

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