Comprehension quiz

Urban Heat Island Mitigation

Listen to the lesson carefully, then answer 10 comprehension questions. Pick one option per question.

Question 1What does the lecturer conclude about mitigating urban heat?

White roofs alone will solve the problem It is too expensive for most councils Coordinated design is needed, not one quick fix Only new technology can lower city temperatures

Question 2What did further analysis identify as the dominant factor behind the heat island effect?

Industrial emissions from factories Vehicle traffic in city centres Surface materials such as dark asphalt Air conditioning units on buildings

Question 3What deterred many councils from planting more urban trees?

The installation cost of saplings The maintenance burden of the trees The lack of space on pavements The objections from local residents

Question 4Where was the urban heat island phenomenon first documented?

In London during the nineteenth century In New York after the Second World War In Tokyo during rapid industrial growth In Paris in the early twentieth century

Question 5Why does the loss of vegetation contribute to urban warming?

It increases the amount of dark asphalt It traps heat inside tall buildings It reduces shade on city pavements It removes natural evaporative cooling

Question 6Which temperatures pose the greatest health risk, according to the lecturer?

Daytime peaks in direct sunlight Night time temperatures during heatwaves Average temperatures across the year Early morning temperatures in city centres

Question 7What do buildings do during heatwaves that harms residents?

They release stored warmth after sunset They block cooling winds between streets They reflect sunlight onto pedestrians They overload their air conditioning systems

Question 8What happened in districts lacking tree cover during one European heatwave?

Water supplies ran completely dry Power cuts lasted several days Hospitals closed their emergency wards Mortality rose sharply

Question 9What limitation of white roofs does the lecturer mention?

They are too costly for most homeowners They reflect glare into nearby offices Their benefit diminishes in colder climates They require yearly repainting by specialists

Question 10What does modelling suggest about combined mitigation measures?

They could lower peak city temperatures by several degrees They would double cooling costs for residents They work only in hot tropical climates They are less effective than white roofs