A) Fertility
Because the more fertility is there, the more is the population increasing on average.
The figures of speech in this passage helps to create angry and unwelcoming mood.
To describe colors to a blind person you use your other 4 senses smell, touch, taste, and emotions expressing it for example red expressing yourself as in love the blood flowing through you ect. or a leave is green expressing yourself saying a green is like a plant thats free in the breeze