Humans tend to congregate and form settlements around areas that are rich with natural resources such as forests and rivers, because these locations support life and the economy.
If X is another angle, keep in mind that when the figure is a triangle the sum of the angles is 180º (angle1+angle2+angle3=180º) ALWAYS!!
Question 2's answer would be
Black soil that contains a lot of water.
Question 3's answer i believe would be soil surveys
Hope this helped!
