The ocean is very deep. It goes deeper then you think. Some parts of the oceans haven't been discovered yet. The ocean has layers called zones. There are five zones in the ocean
Sunlit Zone: The first zone is the Sunlit Zone. This zone is the zone that receives the most sunlight then any of the other layers. In this zone you can find the most plants and common animals such as seals, sea turtles. This zone only reaches to 656 feet.
Twilight Zone: The second zone is the Twilight Zone. Only dim light appears here. If you go down to this zone you will find no plants at all. This zone only reaches 656 feet- 3,280 feet. Some common animals are jellyfish, octopi and squid.
Midnight Zone: This area does not get any sunlight at all. Some animals that live here lack eyes. This zone is only 3,280 feet- 13,123 feet. Some animals that live here are the viperfish, anglerfish, snipe eel and tripod fish.
Abyss: The Abyss is usually used to describe the deep ocean. This zone reaches from 13,123 feet- 19,685 feet. Most creatures that live down here have a backbone for example the sea spider, blind shrimp and hagfish.
Hadal Zone: This is the very bottom of the ocean. The temperature reaches below freezing. This zone reaches from 19,685 feet- 36,197 feet. Even in this freezing weather live sea cucumbers.