Climate and soil quality varied throughout the land area surrounding the city
It is the Line of longitude
Answer:
Skin cancer would be rare, yes but you could still contract it from other sources of radiation. the rest are all wrong.
Explanation:
use big brain
Because Earth Sciences covers a lot of ground (pun intended) and nobody has the time or ability to do everything well and thouroughly. The field is very highly specialized in its subdivisions.