D. He was laughed at, at first
Answer:
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.
They can present coherent and consistent messages to their publics with little fear of contradictiontotalitarianism is a political system in which the state recognizes no limits its authority strives regulate every aspect public private life wherever feasible propaganda totalitarian regimes. Through threats and violence, even enlightened people will compromise their values.
I believe its A could be wrong sorry if i am