Augustus Caesar contributed to the Roman Empire by: giving power back to the Senate and tribunes.
ruling as Rome's first emperor during the pax Romana
ordering the empire to expand to its largest size
dividing Roman citizens into plebeians and patricians.

ruling as rome's first emperor during the pax Romana

a politically correct answer.

northernmost part (disputed, administered) - near indira col, siachen glacier - 35.674520°n 76.845245°e

northernmost part (disputed, claimed) - dafdar near beyik pass - 37°24′00″n 75°24′00″e

northernmost part (undisputed) - near dharwas, chambal district - 33.24902°n 76.82704°e

southernmost part (mainland) - cape comorin - 8.06890°n 77.55230°e

southernmost part - indira point in the nicobar islands - 6.74678°n 93.84260°e

distance between:  

1 & 4 - 3070 km

1 & 5 - 3654 km

2 & 4 - 3269 km

2 & 5 - 3885 km

3 & 4 - 2801 km

3 & 5 - 3430 km

explanation:

c.) the country needed a stronger central government.