Biology, 21.07.2019 11:00 eparikh7317

Can you hear an earthquake before it arrives?

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The answer to your question depends on the type of earthquake it is. For instance, there is something called P-waves which are waves that move rapidly from the Earth's layers before an earthquake or any other phenomenon like a volcanic eruption occurs. If the earthquake is big, then its p-waves are also higher which means we may be able to hear it. If the earthquake is small, then the p-waves are also low, meaning we won't be able to hear it.

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Answer from: imcool666

Yes, it is, but the semi-truck passing by is usually only seconds before the shaking starts. Animals are a lot more sensitive to low frequency sounds than humans are. Many animals start leaving the area of an earthquake epicenter because they can probably sense or hear the movement or the rocks as the stresses and strains on the rock build up and reach the stress capacity and strain limits that the minerals in the rocks start to fracture, which is what causes/initiates the earthquake. Sound, seismic P-waves, and surface Rayleigh and Love waves, travel through solids (rocks and liquids) faster than sound in air travels. Animals leaving hours or even days before a large Richter magnitude earthquake is well-documented.

Answer from: Quest

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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Answer from: Quest

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.

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