What are the differences between chives and green onions in terms of flavor, appearance, and culinary uses?

Chives have a milder onion flavor compared to green onions, which are stronger. Chives are thin and hollow, while green onions have a bulbous white base and long green stalks. Culinary uses differ as chives are often used as a garnish or in salads, while green onions are commonly used in cooked dishes like stir-fries and soups.