SeonAh on October 6 at 09:16AM
I still donâ€™t get why B is the right answer. As read the post below but it still doesnâ€™t make sense to me :(
I interpreted â€œsmall fraction of the supply of fresh waterâ€ as a total usage of the whole population. So why do different regions matter?
Irina on October 7 at 01:49AM