The Role of Trees in Urban Environments

What was the primary reason for the downfall of Uruk's agriculture?

• Mineral deposits from evaporating water

• Soil contamination from industrial waste

• Overuse of irrigation systems

• Excessive use of agricultural chemicals

Why did Anuradhapura's population eventually exceed that of Uruk?

• Better trade routes

• Superior military strategies

• More effective religious practices

• Integration of forests with irrigation

How do trees contribute to reducing urban water pollution?

• By shading water bodies to reduce evaporation

• By filtering water through their root systems

• By breaking down toxins in the soil

• By absorbing pollutants through their leaves

What role do trees play in preventing urban heatwaves?

• They emit cooling vapors

• They reflect sunlight

• They provide necessary shade

• They increase wind flow

What is a significant challenge for tree growth in modern Hong Kong?

• Limited space due to urban infrastructure

• Lack of public interest

• High levels of light pollution

• Soil erosion

How do trees impact mental health in urban environments?

• They increase humidity

• They reduce attention spans

• They increase noise pollution

• They decrease stress levels

What was a key feature of James Oglethorpe's urban design for Savannah?

• No more than a 5-minute walk from a park

• Every home with a backyard forest

• Roads lined with fruit trees

• No neighborhood more than a 2-minute walk from a park

How do urban trees contribute to biodiversity in cities like Portland?

• By generating oxygen at night

• By supplying food sources for humans

• By creating barriers against urban sprawl

• By providing habitats for various species

What unique feature do Singapore's supertrees have?

• They can move to optimize sunlight exposure

• They are made from recycled materials

• They are completely artificial

• They use solar energy and collected rainwater

What percentage of Singapore's landmass is covered by trees and vegetation?

• 65%

• 25%

• 50%

• 75%