Landslides occur when
A) a threshold is reached.
B) the internal friction is overcome by the force of gravity.
C) driving forces exceed resisting forces.
D) all of the above
E) B and C only
Answer: D) all of the above
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In order for geologists to use the principle of uniformitarianism to interpret the geologic record, they
do not need to study modern geologic processes. Indicate whether the statement is true or false.
Preindustrial agriculture
A) is characterized by wide use of subsistence agriculture. B) is practiced in regions where the majority of workers are engaged in agriculture. C) is practiced with primitive methods. D) produces harvests that are mainly for direct consumption. E) is all of the above.
The principle of crosscutting relationships states that a disrupted pattern is older than the cause of disruption.
Answer the following statement true (T) or false (F)
Continental environments include all of the following except ________.
A. glacial deposits B. alluvial fans C. lake beds D. river beds E. coral reefs