Questions

Gas and Oil fields are located in Naharkatiya, Assam. Oil from the fields is sent to Nunmati for refining and gas is made into electricity at Namrup.

The F1, F2 to F12 keys that are found on the top row of most computer keyboards are called as Function Keys. Unless you've witnessed the evolution of computers from their early days, you probably don't know why they were invented and for what.
Function keys were used by various computer programs to fulfill various functions.

F12 - It is used by many web browsers to open the developer tools.

The Indian Ocean consists of one gyre, the Indian Ocean (Majid) Gyre, which exists mostly in the Southern Hemisphere. It is named after Ahmad Bin Majid, the 15th-century Arab mariner. Following shows the Oceans and their respective Gyres

 Indian Ocean            -        Majid Gyre

North Atlantic Ocean   -       Columbus Gyre

South Atlantic Ocean  -       Prince Henry Gyre

North Pacific Ocean     -      Turtle Gyre

South Pacific Ocean    -       Heyerdahl Gyre

The other tributaries of the indus are Jhelum and Chenab.

In chemistry, a precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from solution is called precipitation.