One Degree Down — Group Edition

Quick quiz

These ask about details you only notice by really doing the task. Get every one right to pass.

1. 1. Lowering the thermostat by 1°C typically cuts heating energy by about…

   Nothing — it only saves money5–10%About 50%Less than 0.5%

2. 2. Why should you decide what you want before opening the fridge?

   The light bulb overheatsCold air spills out and the fridge works to cool down againIt resets the thermostatFood spoils instantly when exposed

3. 3. After unplugging idle chargers, which device usually still draws standby power when left plugged in?

   A wooden lamp switched off at the wallA TV or console with a standby lightA disconnected extension cordA battery-free wall clock

4. 4. You opened the curtains instead of using lights. When does that save the least?

   On a dark, overcast late afternoonOn a bright morningAround middayWhen the room faces the sun