Why do countries need exchange rates for international trade? A.
Exchange rates ensure that prices are set by supply and demand.
B.
Exchange rates ensure that each country receives equal trade opportunities.
C.
Exchange rates ensure that the price of goods stays the same over time.
D.
Exchange rates ensure that countries can fairly trade goods for currency.

100 points. answer one of these: 1) describe the paradoxical nature of algernon being “serious” about bunburying. explain the term “bunburying” and its role in the story. analyze the significance of bunburying when it comes to symbolism, conflict, and setting. 2)the subtitle of the play is “a trivial comedy for serious people.” discuss the reversal of the serious and the trivial in the play. give examples of what some characters consider to be insignificant and what they consider to be important. what social commentary is made as a result of these inversions?

Can anyone plz with this question i accidentally posted on physics it's 99 points plus this 5 ponts and will mark as brainliest link :

Nthis poem by ruskin bond, what does the use of the word heart-beats suggest about the narrator's attitude toward life?