Divergent plate boundaries are present under continents during the early stages of continental breakup. When magma wells up beneath a continent, the crust is initially elevated, stretched, and thinned, producing ___________________ _.
Fill in the blank(s) with correct word
Question 2
Index, or guide, fossils are most useful because they ____.
A)occur over small geographic region
B)lived during a brief period of geologic time
C)rarely occur
D)lived over a long period of geologic time
E)are found in all types of rock
Divergent evolution
Polyps, or abnormal growths, on the lining of the large intestine may indicate early stages of colon
The five stages of sleep
Theory of Plate Tectonics
Evolutionary Stages of Stars
Early growth of the common bean (Phaseolus vulgaris), a typical eudicot.