(a) Slaves were used for work.

Slave men and women were captured in war and used as free labourers by their owners.

(b) Megaliths are found in Deccan, Southern India, North-east and Kashmir.

Megaliths were prevalent in these parts of India, while some megaliths can be seen on the surface other megalithic burials are often underground.

(c) Stone circles or boulders on the surface were used to mark the site of burial.

It served as a sign post for burial sites, so that people can return to the same place later.

(d) Port-holes were used for bringing the bodies of those who died later into the family grave.

A porthole is a circular window kind of entry path.

(e) People at Inamgaon ate wheat, barley, rice, pulses, millets, peas, sesame and animal meat besides fruits.

They were both hunter and food gatherers. Once food cultivation started, they settled down in one place.