Answer: The geography and climate of South Asia affect the Indus River Valley.
Step-by-step explanation:
Location: The Indus Valley River is located in south of the Gulf of Khambhat and in the east it extends to Yamuna River, India. It was the location of first civilization of India. The location of Himalaya in the north made it difficult for the immigrants to invade India.
The climate change with winter and summer rainfall systems overlap. Northwestern winds blow in the upper Indus valley during winter season and bring about 4 to 8 inches of rainfall.