Answer:
Correct answer is B peace, prosperity, and flourishing trade.
Explanation:
A is not correct as this period is known as Principate.
B is the correct because it refers to the period between 27 BC to 180 AD during which Roman empire was at the peak of its power and spread peace. Pax Romana actually means Roman peace.
C is not correct as this happened after 313 and Edict of Milan.
D is not correct as this happened in the period between two triumvirates.
Answer: Republic
Explanation: The Roman tribes were long under the rule of Etruscan, so that when they overthrew the Etruscan power, they founded Rome sometime in 753 BCE. After that, Rome was ruled by kings, until the last king was thrown out of the throne and the Roman Republic was established in 509 BCE. Such a Roman Republic represented all citizens, and this right of citizenship could only be realized by the successors of the Roman tribes.
If you are talking about the first air pollution problem its is A, almost about 100 years ago.
1955
Answer: In 1884, the Berlin Conference was convened to discuss African colonization, with the aim of setting up international guidelines for making claims to African land to avoid conflict between European powers.
So B. European imperialists in Africa