If a seismograph shows only p waves what does that tell scientists about the location of the earthquake in relation to the location of the seismograph

Hope this helps you, 

Earthquakes are being recorded by the use of a seismograph. If a seismograph detects p waves it means that the shaking is in the earth’s interior and is not yet felt in the surroundings. It is the kind of wave that dogs can feel before an earthquake happens. 

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

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