Answer: The Aryans passed through the Hindu Kush Mountains to get to the Indian subcontinent
Explanation: The Aryans are a large group of Nomadic Cattle herders. By 1500 BCE the Aryans migrated into the Indian subcontinent, The Aryans migrated to the Indian subcontinent because of the developed civilization in ancient India known as the Indus Valley Civilization, it was located in what is Pakistan and northwest India today.
Natural gas and fossil fuels
The economy in the region of Babylonia was based primarily on grains, oils, and textiles due to it's lack of many vital natural resources in Mesopotamia.
Look at your reference table it will tell uu