A. There is no movement
Hope this helps
Longer than visable light
You can eliminate A, C, and D almost instantly if you know that engineers are construction workers. The answer is B.
Answer:
Seismic waves are waves of energy that travel through Earth's layers, and are a result of earthquakes, volcanic eruptions, magma movement, large landslides and large man-made explosions that give out low-frequency acoustic energy
Explanation:
hope this helps if so please brainliest
Merry Christmas