answer:Yes, you can request a refund for a canceled flight. Please contact your airline directly to initiate the refund process.

answer:A virus is a tiny, infectious particle that can only replicate inside a host cell, while a bacterium is a single-celled microorganism that can replicate and survive independently outside a host. Bacteria are usually larger than viruses and can be metabolically active and reproduce on their own, while viruses lack the cellular machinery required for reproduction and must rely on host cells to multiply.

answer:The phases of the moon are caused by its position relative to the sun as it orbits around the Earth.

answer:Try this recipe for a quick and healthy meal: Grilled chicken with roasted vegetables: 1. Preheat the oven to 400°F (200°C). 2. Season chicken breasts with salt, pepper, and dried herbs of your choice. 3. Cut up vegetables such as carrots, zucchini, and bell peppers into bite-sized pieces. Toss them with olive oil, salt, and pepper. 4. Arrange the chicken breasts and vegetables on a baking sheet and bake for 20-25 minutes or until the chicken is cooked through. 5. Serve with a side of brown rice or quinoa for a complete meal under 500 calories.