Final answer:
Mohenjo-Daro and Harappa were similar in design as they were both cities of the ancient Indus Valley Civilization with well-planned layouts and fortresses for defense.
Step-by-step explanation:
Mohenjo-Daro and Harappa were similar in design because they were both cities of the ancient Indus Valley Civilization. The cities had a well-planned layout with wide streets laid out in a grid pattern, indicating advanced urban planning. They also had similar features such as a fortress built in each city for defense.
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