Andean region of South America has emerged as the world's most productive Copper Region
in the world.
After the rise of Islam in the Hejaz, Arab culture and language were spread outside the Arabian Peninsula through conquest, trade and intermarriages between members of the non-Arab local population and the peninsular Arabs. The Arabic language began to serve as a lingua franca in these areas and dialects were formed.
For Earth to make one complete revolution around the Sun takes 365.24 days. This amount of time is the definition of one year.
Effects of Revolution of the Earth: Certain areas are tipped towards, or away from, the sun at different times of the year. This tilting causes the four seasons of the year. The tilting also creates opposite seasons in the Northern and Southern Hemispheres.
