It isn't exactly known who discovered it first, but the earliest claim of earth being round rather than flat was posed by Pythagoras sometime around 500 B.C. He argued that if the moon was round the Earth should be as well.
After that, his claim was proven true by a man named Anaxagoras at around 500-430 B.C when he brought up solar and lunar eclipses. The shape of Earth's shadow on the moon was also used as evidence that the Earth was round.
And finally, in 350 B.C the great Aristotle declared that the Earth was a sphere based on constellations you can see if you travel farther from the equator. Over the next hundred or so years, Aristarchus and Eratosthenes actually measured the size of the earth.
Short answer: The Greeks
The correct answer is A. Putting a strict time limit on her studying
Explanation:
The main problem of Shauna is that she does not know when to stop studying; this implies, Shauna has problems in finding a limit which can cause Shauna only spends time studying but has no time for other responsibilities or leisure. In the same way, this type of behavior can lead to addiction to studying and later addiction to working which would affect negatively her life. Due to this, she must set a specific limit to study, in this way she can still study and achieve her goals but also know where to stop and spend time in other actives. Therefore, what would help Shauna to solve this problem is "putting a strict time limit on her studying".
Answer:
B) wind currents
Explanation:
Because it is in a high area
Answer:
C) rebellions in Ireland between 1916 and 1921
Explanation:
The religious conflict in Northern Ireland has been building on for some time, but it escalated in the early 20th century when multiple rebellions broke up. The main reason for the religious conflict was that part of the population was Catholic, while part was Protestant. This was used not just in religious manner, but also as a nationalistic one, as Northern Ireland was not very fond of being part of the British Empire. Once the conflict started it continued for quite some time, until the 1990's, and lot of terrorist attacks took place, as well as assassinations, clashes between the two groups and lot of deaths of innocent civilians.