Question : The first metal used by man was 

Option 1: Aluminium

Option 2: Copper

Option 3: Iron

Option 4: Silver

Question : Which of the following was a significant feature of the economy during the Gupta period? 

Option 1: Extensive trade with Rome 

Option 2: Decline in urban centers

Option 3: Flourishing of guilds 

Option 4: Heavy reliance on barter system

Question : The "king of metal" is:

Option 1: gold

Option 2: silver

Option 3: iron

Option 4: aluminium

Question : Haemoglobin in the blood is a complex protein rich in:

Option 1: Iron

Option 2: Silver

Option 3: Copper

Option 4: Gold

Question : Which of the following metals was used to make weapons and tools in Harappan cities?

Option 1: Silver

Option 2: Gold

Option 3: Copper

Option 4: Iron