Which property enhancement resulted from annealing bronze axe heads in ancient Mesopotamia?

💡 Explanation

When bronze axe heads were annealed, controlled heating and cooling allowed recrystallization because it reduced internal stress concentrations accumulated during hammering. Therefore, brittleness decreased, leading to increased resistance to shattering, rather than edge sharpness, decreased weight or enhanced corrosion resistance which depended on different alloy compositions and surface treatments.

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