How can settlement archaeology help archaeologists

In the scientific field of archaeology, the term "settlement pattern" refers to the evidence within a given region of the physical remnants of communities and networks. That evidence is used to interpret the way interdependent local groups of people interacted in the past

They find various sites by visually observing objects on the surface of the earth that can explain anything related to understanding human life. For example, they have surface surveying which allows a group of people to walk over land and place flags anywhere they find an object.

Explanation:

option c (nickel) is not found in earth's crust. the earth's crust basically contains eight (8) elements namely: oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium (listed in order of abundance).