Answer:
B. Plate boundaries
Explanation:
The ring of fire is a path in the Pacific Ocean that has a lot of active volcanoes that result from subduction of oceanic plates beneath the continental plates. Because of the movement of the tectonic plates in this area many earthquakes happen.
Answer:
Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers.
Seismic waves are recorded by a machine called a seismograph, which tells us about the strength and speed of the seismic waves. ... Seismic waves travel at different speeds when they pass through different types of material, so by studying seismograms, scientists can learn a lot about Earth's internal structure.
Explanation:
Does this help??
Answer:
i think its the last one hope this helps
Explanation:
