Due to rock cycle processes, finding old rocks by radioactive methods is difficult. What is the age of the oldest single rock found on Earth to date?
A) more than 2 billion years
B) more than 2.5 billion years
C) more than 3 billion years
D) more than 4 billion years
Answer: D
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Willingness to join together to form a government to solve common problems is
A) a political community. B) a state. C) a constitution. D) an election.
Dry summers and winter precipitation maxima characterize this small biome is located in 5 disparate locations, typically on the west coast of continents between 30° and 40° latitude
A) Mediterranean shrubland
B) Midlatitude grassland
C) Midlatitude broadleaf and mixed forest
D) Tropical savanna
Any bending of light other than by reflection or refraction is
A. dispersion. B. interference. C. diffraction. D. all of the above
Which of the following depositional features is produced
a. Marine terrace b. Sea stack c. Spit d. Sea arch e. Wave-cut platform