Answer:
they are used in periscopes,for signalling,in kaleidoscopes,to see round dangerous bends
Explanation:
Answer:
Explanation:
Scientist use many techniques to analyze and interpret data. To interpret data they make tables and graphs of data which are two of the most useful techniques in data analysis.
During the Gupta golden age, Aryabhata was known for discovering that Earth rotated on an axis.
Aryabhata was a professional at mathematics and astronomy. He calculated the value of pi, calculated the volume of a sphere and area of a triangle, characterized the model of the solar system, and many other things. While studying astronomy, Aryabhata came up with an assumption that Earth rotated on an axis while the heavens orbited around it.
The answer is probably going to be b or d. hope that helped