Final answer:
The Harappans used bricks to build their cities.
Step-by-step explanation:
The Harappans used bricks to build their cities. The Harappan civilization, also known as the Indus Valley civilization, existed around 2600 to 1900 BCE in what is now Pakistan and northwestern India. They were skilled builders and used fired bricks made of clay to construct their cities. The bricks were uniform in size and shape, which allowed them to build structures with precision and stability.
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