What was the effect of food exchange on people's diets?

A. नई crops diets में शामिल हुईं / New crops entered diets

Step 1: Identify the concept: this is global food exchange. Step 2: Crops like potato, maize and chillies reached new regions and changed diets. Step 3: Remember food exchange with changing diets.

Step 1: concept पहचानें: यह global food exchange है। Step 2: Potato, maize और chillies जैसी crops नए regions में पहुंचीं और diets बदलीं। Step 3: Food exchange को changing diets से याद रखें।