The geologic rock cycle presents an orderly transition from igneous to sedimentary to metamorphic rocks. However, there are also some alternative transitions that bypass part of the rock cycle.
Which of the following is the best example of one of those bypasses?
A) Igneous rocks are weathered and eroded to become sediments.
B) Metamorphic rocks are melted to become magma.
C) Magma cools and crystallizes to form igneous rocks.
D) Sedimentary rocks are weathered into sediments, which become lithified into sedimentary rocks.
Question 2
If the age of a mountain range is inversely proportional to its height, in what two regions are the youngest mountain ranges found today?
A) The circum-Atlantic belt and southern Europe/Asia
B) Western South America and the Appalachians of North America
C) The circum-Pacific belt and southern Europe/Asia
D) Scandinavia and Eastern Africa
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