Q. Atranjikhera, an important archaeological site excavated in Firozabad district, shows early use of which of the following?
Answer: Iron for paddy cultivation
Notes: Atranjikhera, excavated by R.C. Gaur, is significant for the early evidence of iron use in the Indian subcontinent, dating to around 1000 BCE. Archaeologists found iron tools and implements associated with paddy cultivation, fire pits, and cattle rearing, pointing to an advanced, settled agrarian society in ancient Uttar Pradesh. This early usage marks an important technological advance in agriculture and daily life during that era.