Explanation:
a green and sustainable city is a community of residents, neighbours, workers, and visitors who strive together to balance ecological, economic, and social needs to ensure a clean, healthy and safe environment for all members of society and for generations to come.
I think the answer is fertility rate... but i could be wrong. good luck!
B. They can often include and affect other factors which can be difficult to find a solution that doesn’t leave behind a negative affect.
I believe it is fall in the north and spring in the south
