Imperialism necessitates control of territories, while rivalry for resources just means control of those resources.
Answer: Petroleum, Electricity and Steel
Explanation: The second industrial revolution is a period between the late 19th to the early 20th century which is characterized by massive growth and expansion of industrialization. The second industrial revolution is also known as the technological revolution most notable for steel production, expansion in electrification which was previously limited to very few cities and development of Petroleum and gas supply.
The Romans were implementing the Latin language as the language of the administration for both, practical reasons and also assimilation of the native population they have managed to conquer.
By making the local chieftains learn, speak, and use the Latin language, the Romans played very well tactically, because in this way the leaders of the tribes were slowly becoming assimilated into the Roman culture, and once the local leaders are assimilated it has a chain reaction and the people that are under their guidance are starting to assimilate as well.