The table shows the temperature in four laboratory storage units.
| Unit | Temperature |
|---|---|
| Freezer A | 4∘C4^{\circ}\text{C}4∘C |
| Freezer B | −5∘C-5^{\circ}\text{C}−5∘C |
| Freezer C | −15∘C-15^{\circ}\text{C}−15∘C |
| Freezer D | −20∘C-20^{\circ}\text{C}−20∘C |
Write down the name of the unit with the lowest temperature.
Work out the difference between the temperature in Freezer B and the temperature in Freezer A.
A technician adjusted the controls so the temperature in Freezer B increased by 8∘C8^{\circ}\text{C}8∘C. Work out the new temperature in Freezer B.
