Car-Free Trip — Three Days Running

Quick quiz

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

1. 1. For a short trip under 2 km, which usually produces the most emissions per person?

   WalkingBikingA full busA car with one person

2. 2. Why do short car trips pollute more per kilometre?

   Cold engines burn fuel less cleanlyRoads are rougherCars go faster in townFuel is weaker in the city

3. 3. Planting trees helps the climate because trees…

   Make more smokeTake in carbon dioxideCause rain to stopUse up water only

4. 4. Which gas is a main cause of climate change?

   Carbon dioxideOxygenHeliumNitrogen