Large groups of galaxy clusters that appear in sheetlike and threadlike shapes are known as
a. superclusters.
b. large clusters.
c. local clusters.
d. milky way center

Witch of the following types of boundaries is most likely to result in a subduction zone

Technology has affected regional settlement patterns in what ways? choose all that apply. climatic improvement strategies have improved crop productivity. mechanized agricultural methods have improved agricultural productivity. participation in the global economy has increased urbanization. population shifts from urban to rural areas has increased as a result of petroleum production. settlement areas have increased as a result of improved water storage and delivery systems.

The states that the process that have been occurring today have been occurring since earth formed. what is it?