Why do you put lemon juice on avocado pears after they are sliced open?

Lemon juice is applied to sliced avocado Pears to prevent browning, which occurs due to oxidation when the fruit's flesh is exposed to air. The citric acid in lemon juice slows this process and helps maintain the avocado's vibrant green color. Additionally, the acidity can enhance the flavor of the avocado, making it more enjoyable to eat.