Lecture 9 - Materials, Water, Food

The largest urban metabolic flow by mass is

• Nutrients

• Water

• Energy

• Materials

In urban areas, the hydrological cycle is modified by:

• Decreased evapotranspiration

• Increased precipitation

• Decreased surface run off

• Greater groundwater discharge

Per 1 km2, foraging was able to support:

• 100 people

• 400 people

• 200 people

• less than 1 person

The greatest source of life cycle energy demand in net-zero buildings will be from:

• Lighting

• Heating

• Embodied energy of materials

• Air conditioning

Population growth is the main driver of resource demands

• True

• False