Question 1
A vertical air current that is generated by temperature-induced density differences is an example of heat transfer by
◦ advection.
◦ convection.
◦ conduction.
◦ transmission.
◦ diffusion.
Question 2
Air pollution acts to ________ the albedo of cities and therefore ________ the urban heat island effect.
◦ increase; enhances
◦ increases; diminishes
◦ decreases; enhances
◦ decreases; diminishes