Identify the TRUE statement. Question 19 options: The variety of different wave frequencies (the frequency content) of an earthq
uake remains the same with distance from the hypocenter. Low-frequency seismic waves cause more ground acceleration than do high-frequency waves. Low frequency waves lose energy more rapidly than high-frequency waves. In the Mexico City quake, high-frequency waves weakened with distance, but unconsolidated beds of the sedimentary basin there amplified low-frequency waves.
C. Low-frequency seismic waves cause more ground acceleration than do high-frequency waves.
Explanation:
Low-frequency seismic waves covers more distance as compared to high-frequency waves because high frequency wave provide more energy to the medium while low frequency waves supply less energy to the medium so which makes the wave to go further. Lower frequency waves "penetrate" into a materials better, because energy particles having lower frequencies having less energy and they pass through the medium without interacting with the matter.
Aurora, luminous phenomenon of Earth's upper atmosphere that occurs primarily in high latitudes of both hemispheres; auroras in the Northern Hemisphere are called aurora borealis, aurora polaris, or northern lights, and in the Southern Hemisphere aurora australis, or southern lights.
