The table shows the temperature at midnight and midday on December 15th in four cities.
| City | Midnight Temperature | Midday Temperature |
|---|---|---|
| Tromsø | -12 °C | -7 °C |
| Helsinki | -5 °C | 2 °C |
| Oslo | -8 °C | -6 °C |
| Reykjavik | -2 °C | 1 °C |
Write down the name of the city with the lowest midnight temperature.
Which city had the greatest rise in temperature from midnight to midday?
At midnight, how many degrees colder was Tromsø than Reykjavik?
