GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement describes a seismograph?
A
It has a flat graphing surface.
B
It is used to locate an earthquake’s focus.
C
It uses a needle on graph paper to measure seismic wave activity.
D
It measures data used to find the difference between the arrival times of surface waves.
Explanation: 

Detailed explanation-1: -It has a curved graphing surface. It is used to locate an earthquake’s epicenter. It uses a needle on graph paper to measure seismic wave activity. The seismograph is also called as the seismometer.

Detailed explanation-2: -Which statement describes a seismograph? It has a flat graphing surface. It is used to locate an earthquake’s focus.

Detailed explanation-3: -A seismogram is a record of the ground motions caused by seismic waves from an earthquake. A seismograph or seismometer is the measuring instrument that creates the seismogram.

There is 1 question to complete.