Which three achievements can be attributed to the Harappan civilization in the Indus River Valley? *

The Indus River Valley Civilization developed the first accurate system of standardized measures and weights.

Explanation:

The three achievements that can be attributed to the Harappan civilization in the Indus River Valley are as follows:

1. The Indus River Valley Civilization developed the first accurate system of standardized measures and weights.

2. Harappans use materials, such as terracotta, metal, and stone to create sculptures, seals, pottery, and jewelry.

3. Harappans also laid water management and drainage mechanism.

aristocracy, timocracy, oligarchy, democracy, theocracy and tyranny

explanation:

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