Which of these was an important achievement in the field of astronomy that occurred during the gupta empire in ancient india?
a) scholars discovered that earth rotates on its axis every day.
b) scholars developed a working system of latitude and longitude.
c) scholars discovered that the earth was the center of the universe.
d) scholars developed a method to accurately predict lunar and solar eclipses.

A) Scholars discovered that Earth rotates on its Axis every day, is the correct answer.

Explanation:

The Gupta age was glorious period in Indian history as all the branches of culture were enriched. This period was blessed with accomplished astronomers and mathematicians, Aryabhatta was the most famous one, he was born in 476 AD in Patliputra. His famous work is Arya- Bhattyam. His works included arithmetic, algebra and geometry. He established the face value of Zero, and invented the decimal system. In his book Surya Siddhartha, he revealed the real causes of solar and lunar eclipse. Earlier it was believed that eclipses occurred when the demon Rahu swallowed up the sun and moon after periodic intervals. He also explained the variation in planetary motions and proclaimed that the earth revolves round its axis.

b. andrew

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.