How did Freiburg become more sustainable?

Geography

What type of renewable energy is used to power Frieburg’s football stadium?

How many years does it take for a disposible nappy to decompose?

Tick two benefits of the tram system in Freiburg.

it makes buildings look better and puts a smile on the faces of passers-by.

it makes the houses more desirable places to live.

Complete this sentence by selecting the response that shows that this practice is sustainable: Vegetation on buildings is positive because...

Not enough houses which led to favelas forming

What were two negative impacts of the population growth in Curitiba between 1940 and 1960?

Buses have their own lanes, so no traffic

What are three positive features of bi-articulated buses?