Which of the following renewable energy source seems to have the greatest potential for creating sustainable cities, especially as it relates to urban electricity production?
A) biofuels
B) geothermal processes
C) compact fluorescent technology
D) tidal power
E) solar PV
Question 2
Where are temperate rain forests most common?
A) coastal regions
B) polar region
C) desert regions
D) mountain regions
E) tropical regions