It benefits companies by letting geologists find out where oil would likely be by studying surface rock formations, magnetic fields and even slight variations in gravity. One of the most important innovations in oil exploration was 3-D seismic imaging. The companies end up making tones of money off the research that they find
All multiple choice
Probably not crush your grade overall
B. Rock and roll is the answer
"(2) Salt mined in the Sahara was exchanged for gold" is most closely
<span>associated with the West African civilizations of Ghana and Mali since demand for salt was higher. </span>
