kindly answer this question
When price of a foreign currency falls, the supply of that foreign currency also falls,explain why?

Dear student, 
The supply of foreign currency shares a direct relationship with the exchange rate. With a fall in the exchange rate the supply of foreign currency falls and vice-versa. A fall in the foreign exchange rate implies that domestic goods have become expensive to the foreign countries. This reduces the demand for exports. So, the supply of foreign exchange falls.