Why is a shark a carnivore?

How many sharks are born each year? How is energy stored in rocks? How can fish see inside water? Do guppies give birth to live young? A real honest mermaid spells? Why does my hermit crab have a white bump? What do aquarium fish eggs look like? Does the leapord shark have any natural predators? Do you breathe in or breathe out more water vapour? What the best way to cook rock salmon? Is a shark Bigger than a swordfish? How many sharks are there in the world that are not extinct? What causes ponds to turn dark green? What energy source does algae have? How much does a fronto kings leaf cost? How do you know when flounder is done? Does a perch have paired appendages? How did Alva j fisher die? How long will a bluegill live for? What is the symbiotic relationship between shark and suckerfish?