How did smallpox give Spanish conquerors advantage in America?

A. It weakened native populations before strong resistance

Step 1: Identify the concept: this is disease and conquest. Step 2: Native people had no immunity so disease weakened resistance. Step 3: Remember smallpox with biological impact.

Step 1: concept पहचानें: यह disease and conquest है। Step 2: Native people में immunity नहीं थी इसलिए disease ने resistance को कमजोर किया। Step 3: Smallpox को biological impact से याद रखें।