১০৬১১
The exchange of commodities between two countries is referred as
উত্তর
Bilateral trade
১০৬১২
The branch of science dealing with the study or collection of coins, banknotes, and medals is known as
উত্তর
Numismatics
১০৬১৩
Which of the following countries has recently launched the world's longest zip line, measuring 2.83km in length?
উত্তর
UAE