Pertain The five
pertain to what geographers study, while the five
to tools for studying any topic.
A. subfields; regions
B. subfields; themes
C. themes, subfields
D. regions; subfields

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."

East asia is considered a less developed nation. true or false

What evidence supports geological processes changing the surface of the earth? cutting down forests creates a decrease of habitats. tectonic plates uplift the rocky crust of earth to form mountains. competition in ecosystems creates a decrease in diversity. pollution runoff contaminates a lake.