WORLD CIVILIZATION

Detailed explanation-1: -The ancient Indus systems of sewage and drainage developed and used in cities throughout the Indus region were far more advanced than any found in contemporary urban sites in the Middle East and even more efficient than those in many areas of Pakistan and India today.

Detailed explanation-2: -The people of the Indus Valley forged an impressively advanced civilization, with large urban centers, standardized systems of weights and measurements and even drainage and irrigation systems.

Detailed explanation-3: -Answer and Explanation: The Indus Valley civilization was advanced due to its urban and rural areas, its organization, its system of writing, and its international trade networks. Impressively, the Indus Valley civilization had several large urban centers. The two biggest cities were Harappa and Mohenjo Daro.

Detailed explanation-4: -Indus civilization, also called Indus valley civilization or Harappan civilization, the earliest known urban culture of the Indian subcontinent. The nuclear dates of the civilization appear to be about 2500–1700 bce, though the southern sites may have lasted later into the 2nd millennium bce.

Detailed explanation-5: -The correct answer is option 1. i.e. The Indus people were the first to produce cotton. The Indus people were the first to produce cotton.