How does a flat-topped seamount, called a guyot, form?
What will be an ideal response?
During their existence, inactive volcanic islands are lowered to near sea level by the forces of weathering and erosion. As the moving plate slowly carries them away from the elevated oceanic ridge or hot spot over which they formed, they gradually sink and disappear below the water surface, at which point we call them guyots.
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The auroras that are visible in the southern hemisphere are the:
A) aurora borealis. B) aurora australis. C) antarctic aurora. D) ionic aurora.
What is country rock?
A. Any coarse-grained igneous rock B. An igneous intrusion that reaches the Earth's surface C. Older rock through which a younger igneous body intruded D. Any light-colored igneous rock E. A general term for the most common rock within a geographical area
What type of energy has a wavelength shorter than that of violet light?
a. ?green visible radiation b. ?blue visible radiation c. ?infrared radiation d. ?red visible radiation e. ?ultraviolet radiation
The concentrations of dissolved solids in seawater is known as salinity
Indicate whether the statement is true or false