The _________ plain was a densely forested area which received heavy rainfall.

The credit of employing techniques of iron goes to ____________.

The Iron Age is the archaeological period generally occurring after____________.

The use of iron was started in India roughly _______ years ago.

The ______ people who inhabited the area of Sapta Sindhu.

The Gangetic plain was also rich in _____ deposits

________ is added to this ore and heated to a high degree of temperature to produce iron.

Iron ore was first processed by

Pure iron is beaten to make weapons and _________.

Most places on _____ have deposits of iron.