One reason why People in South America moved from rural areas to the city is to get more employment opportunities
B. Crystal size is a function of cooling time. The longer a melt cools the larger the crystals.
The volcanic intrusion rule is relative dating
Answer:
Seismic tomography
Explanation:
Seismic tomography is a technique for imaging the subsurface of the Earth with seismic waves produced by earthquakes or explosions. P-, S-, and surface waves can be used for tomographic models of different resolutions based on seismic wavelength, wave source distance, and the seismograph array coverage. The data collected can be represented in a 3D image for further investigation.
