Question

People in the United States know that water boils at 212°F. In Europe,

people know that water boils at 100°C. Is the water in the U.S. different
than the water in Europe? What explains the two different temperatures?

Answer 1

They are not two different temperatures. They are two different
descriptions of the same temperature, using different-size degrees
and different scales. A lot like "60 miles per hour" and "96.6 kilometers
per hour" ... the same speed.

In the case of the temperatures, the tags " °F " and " °C " show that the
units are different. And even though it's not obvious from the descriptions,
they also start counting at different temperatures.