I'm pretty sure that it is oil because that is what most of the countries over there use it, making it a trend.
<h3>Where does oil come from?</h3>
a)Mined from mountain sides
b)Only from the oceans
c)Deep underground
<h3>Deep underground</h3>
Answer:
The continental margin of the U.S. Atlantic coast is a__Passive__continental margin, and the continental margin off the west coast of South America is an__Active__ continental margin.
Explanation: Inactive mainland edges create along coastlines that are not structurally dynamic, including a great part of the Atlantic Ocean coastline