Since a seismograph is a device used to measure the magnitude earthquakes, someone who studies earthquakes would use it.
I would use kilometers.
you would use grams
In the US, I would use yards.
You would use "my feet have", since feet are plural. If you wanted to use "has", you would need to say "my foot has".
it depends. If you were mesuring length then you would use meters. If you were measuring volume you would use cubic meters. If you were measuring weight you would use metric tons.
A seismograph is the device that scientists use to measure earthquakes. The goal of a seismograph is to accurately record the motion of the ground during a quake
It would depend on the size of the quake. It is certainly possible to use only one seismograph, it would just be impossible to use triangulation to find the epicenter of the tremble, as it requires at least three.
The seismograph needle fluttered wildly during the aftershock.
Here are some sentences.Scientists use a seismograph to measure movement in the earth.The seismograph showed that an earthquake had occurred.
Multiple seismographs
A seismograph is the device that scientists use to measure earthquakes. The goal of a seismograph is to accurately record the motion of the ground during a quake
They use a seismograph
The seismograph measured the intensity of the seismic waves
A seismograph is an instrument that measures the intensity of earthquakes. Seismograph technology would refer to the science involved with the design or improvement of the instrument.
earthquakes are measured by seismic waves so scientists use a seismograph. there are a bunch of seismographs at a station and each one records the same stuff according to the p, s, and surface waves.
Use a seismograph.
A seismograph.