Honest answers : )

1. why was concrete better than stone for building in the roman empire?

a. it was more flexible than stone when dry.
b. it was heavier than stone when dry.
c. it was lighter and easier to use than stone.
d. it was stronger and more durable than stone.

2. which of the following is an accomplishment of emperor caesar augustus?

a. he started a civil war that eventually overthrew the republic.
b. he started a prolonged time of peace in the roman world.
c. he ended the persecution of christians.
d. he wrote a famous book on philosophy.

3. how did the roman navy trade prosper in the mediterranean region?

a. by collecting taxes
b. by paving roads
c. by reducing piracy
d. by speeding travel

#1 is D - I've used concrete myself for building fences and it has quite the reputation for being incredibly sturdy and durable to all sorts of environmental hazards ex: storms

#2 is B - Augustus was one of the greatest emperor of Rome. He converted Rome from being a republic to an empire and thus becoming its first emperor. He had a brilliant career and converted Rome into one of the Greatest empire in history of mankind. Some of his accomplishments include. Pax Romana (Roman Peace)

#3 is C - Ancient Rome was criss-crossed with trade routes. ... The Roman Navy did what it could to make the Mediterranean Sea safe from pirates.

Roman concrete was a material utilised in construction through the late Roman Republic till the fading of the Roman Empire. Roman concrete was based on a hydraulic-setting cement. Lately, it has been determined that it materially differs in many ways from modern concrete which is based on Portland cement. Roman concrete is durable due to its merger of volcanic ash, which prevents cracks from spreading.

Augustus Caesar, also known as Octavian. He completed a period of lengthy civil wars in the Roman Republic and began a period known as Pax Romana or Roman Peace, which served for over two centuries. Augustus was an administrative character who brought logical taxation and executed many political, financial, religious and other reforms which led to accomplishment in his empire.

The Roman Empire was crisscrossed with trade routes. There were sea routes that incorporated the Mediterranean and Black Seas and various land routes using the roads constructed by the Romans. Trade and transferring the Roman Army around were the two principal goals for constructing roads.