(i) A specialist is a person who is trained to do only one specialized kind of work, for example, cutting stone or polishing beads, or carving seals.
(ii) Not everybody can be a specialist. We do not know whether only men were specialists or only women were specialists in the Harappan civilization.

(i) Most of the things that have been found by archaeologists are made of stone, shell and metal, including copper, bronze, gold and silver.
(ii) Copper and bronze were used to make tools weapons, ornaments and vessels.
(iii) Gold and silver were used to make ornaments and vessels.

(i) Many of the Harappan cities had covered drains which were laid out in straight lines.
(ii) Each drain had a gentle slope, so that water could flow through it.
(iii)Very often, drains in houses were connected to those on the streets and smaller drains led into bigger ones.

(i) Generally, houses were either one or two storey high with rooms built around a courtyard.
(ii) Most houses had a separate bathing area and some had wells to supply water.

Substances that are either found naturally or produced by farmers. and herders and then processed to make finished goods are known as raw materials.

The Harappan city was a very busy place. There were people who planned the construction of special buildings in the city, People may have kept the most valuable objects, such. as ornaments of gold and silver. People also travelled to distant lands.

(i) Harappan seals were rectangular in shape.
(ii) These seals were made of stone.

Most of the things would have been carried on the backs of pack animals such as cattle or by people.

Old buildings and houses are places of interest for people as they reflect the tradition and customs of contemporary time. So, some people are interested in preserving the old, run down houses for the conservation of heritage.

Many of the Harappan cities were divided into two or more parts. These were:
(i) The part to the West was smaller but higher, and the archaeologists described this as the citadel.
(ii) The part to the East was larger but lower, known as the lower town.

The city of Lothal stood beside a tributary of the Sabarmati, in Gujarat, close to the Gulf of Khambat. It was situated near areas where raw materials such as semi-precious stones were easily available. This was an important centre for making objects out of stone, shell and metal.

No, there is no illustration of wheeled vehicles in earlier lessons.

Seeing the toy cart in the picture, it suggests that carts drawn by animals was one of the modes of transport used by the Harappans.

The people who lived in a Harappan city were:
(i) Rulers (ii) Traders (iii) Scribes (iv) Crafts persons
In Mehrgarh, there were farmers, herders and probably leaders of the tribes.

Yes, it is important to preserve old buildings because old buildings always tell the stories of past that how people lived at that time.