In 2008, the exchange rate between euros and US dollars was 1 euro for $1.55. In 2019, the rate was 1 euro for $1.12. Based on this information, which conclusion can be drawn about the value of the euro in international trade?

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.