1)To reach sustainability with a larger world population we must do more with less. For each of the following strategies that promote sustainability within a city, explain how each will reduce greenhouse gas emissions.

a.Don't allow cars in the centres of the cities.

b.Plant gardens in all empty lots.

2)

A 1000 MW nuclear power plant will produce 3.15 x1016 J of energy in a year. What mass must be converted to energy to do this? Show your work including the formula, substitution, and answer, rounded to the correct number of significant digits and with the appropriate unit