The extinction of many species in a relatively short period of geologic time is called ____.
A. mass extinction
B. secondary extinction
C. biological extinction
D. background extinction rate
E. tertiary extinction
Answer: A
You might also like to view...
The region's unpredictable politics and poor economic conditions have led to this migration pattern
A) eastward expansion into Siberia B) movement into southern Russia for agricultural opportunities C) young, well-educated populations leaving Russia for other countries D) Jewish populations within Russia returning to Russian cities from Israel and the U.S.
Which process is thought to generate most felsic magmas?
A) Decompression melting in a continental rift zone B) Crystal settling during magmatic differentiation C) Heat from basaltic magma partially melting overlying crust D) Friction along the crust in a convergent plate boundary
Since we will never be capable of truly understanding every nuance of an environmental system, it makes no sense to study them or try to predict human-induced effects.
Answer the following statement true (T) or false (F)
If an oceanic trench formed along the East Coast of North America, the deepest earthquakes related to the subduction of the oceanic plate beneath North America would occur ________ the eastern coastline.
A. randomly all around B. east of C. along D. west of