Question

Read the passage below. Then, answer the question.

Forces deep within the earth are constantly affecting the surface of the earth. The energy from these forces is stored within the earth's surface. When this energy is released suddenly, an earthquake occurs. Sensitive instruments called seismographs can detect strong earthquakes in any part of the world.
Which instrument is used to detect earthquakes?
A) Barometer
B) Seismograph
C) Telescope
D) Thermometer

Answer 1

The seismograph is the instrument used to detect earthquakes by measuring seismic waves. option b is correct

Step-by-step explanation:

The instrument used to detect earthquakes is the seismograph. Seismic waves, which carry energy released during an earthquake, are detected by seismographs.

These waves vary in speed as they travel through different materials, providing valuable information about the Earth's internal structure.

Sensitive seismographs measure the arrival times of these waves with precision, allowing scientists to determine the distance to the earthquake's epicenter, as well as the composition and structure of the Earth's interior. Seismographs are critical tools not only for understanding earthquakes but also for monitoring underground activities such as nuclear tests, having a far-reaching impact on both science and safety.