Who determines which names and dates on the geologic time scale are "official"?
What will be an ideal response?
Answer: The organization that is largely responsible for maintaining and updating this important document is the International Commission on Stratigraphy (ICS), a committee of the International Union of Geological Sciences.
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A 200-Hz tuning fork will resonate when it encounters a sound wave of frequency
A. 300 Hz. B. 200 Hz. C. 150 Hz. D. none of the above
In the U.S. system of democratic rule, one does not need to receive the most votes in the entire country to become President
Indicate whether this statement is true or false
Which is classified as cosmogenous sediment?
a. evaporites b. ooliths c. microtektites d. manganese nodules e. siliceous ooze
Which of the following is NOT true of basaltic lava flows?
A. They flow downhill from the vent area. B. They form from nonexplosive eruptions. C. They pile up in steep, cone-shaped hills. D. They can issue from the bases of cinder cones.