Answer:
Aryans moved from the area of todays Afghanistan to the Indian subcontinent during the period of Indo-Aryan migration, somewhere around 1800 and 1500 BC.
Explanation:
Some scholars don't agree with this theory that the Aryans migrated to the Indian subcontinent, but most of historians are arguing that during this migration they came from the North and destroyed the Dravidians who were living there. Their period that started during the migration is known as Vedic period.
Answer:
b. may happen as regression brings rock closer to the Earth's surface.
Explanation:
The term metamorphism when applied to geology refers to the changes that occur between rocks that allow them to form into different rocks over a cycle. Within this process, there is a type of metamorphism known as retrograde metamorphism, which occurs when there is a regression that brings rocks close to the surface and promotes a decrease in temperature and pressure.
The British conquered Myanmar, and the French conquered Laos, Cambodia, and Vietnam in the the 1800's and 1900's, and the conquerors always leave some of their culture behind. Hope this helps. Good luck!
