The separation of the earth into layers was the result of the:

a. presence of water at earth's surface.
b. initial collection of materials and their position in earth.
c. decrease in temperature downward toward the core.
d. differing densities of the rock and mineral materials.
e. gravitational force created by the rotating earth.

Aletsch glacier is the largest glacier in switzerland and the largest found in the alps, a mountain range which extends from monaco in the east to slovenia in the west. currently, the aletsch glacier is retreating. under what circumstances would this glacier see growth instead of retreat? a decline in plate tectonics across the mountain range annual snowfall that exceeds yearly losses an increase in ablation in the southern valleys a rise in temperatures to that of a mediterranean climate

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics

What is unusual about the iraq mountains ,in spite of their old age?