An exchange rate is used to a) promote the argument supporting free trade. b) promote the use of subsidies on foreign goods. c) determine the price of one country's imports in terms of another country's imports. eliminate d) determine the price of one country's currency in terms of another country's currency.

There are 25 elements found in living things. how many of these elements are found in some organisms but not all? 1 , 6 , 19 , 25

Can someone me with these 2 questions? and tell me why it is the correct answer?

Which of the following statements about early mesopotamian civilizations is false? a. mesopotamia was one of the first places in the world where urbanization occurred. b. mesopotamian civilizations settled between the tigris and euphrates rivers. c. mesopotamia was located in modern-day china. d. mesopotamian civilizations invented the wheel.