all about ocean
There is a lot of salt in the ocean but there is less salt the shallower it gets because there is less water & more sunlight. In different parts of the ocean there are different amounts of salt. An ocean is basically a huge lake but with salt water. More oceans & seas cover the world than all of the land on earth. There are different oceans in the world.
Bottlenose dolphins eat smaller fish & squid.They live in all oceans except where the temperature is extremely low.Great white sharks live in all coastal temperate waters.It eats seals, sea lions, dolphins & stingrays. Frilled shark live in shallow waters but no one knows what it eats because there was only one in the world ever found.
Red algae grows in tropical waters.Red algae has grown in oceans for millions of years. That's older than anyone you'll ever meet. It is sold in Asia as food. Red algae has a high protein content & has lots of vitamins. Kelp grows on rocky coast lines. They have things called hold fasts. The hold fasts help them hold onto the slippery rocks. Sea grass grows in the shallow water. It needs lots of sunlight to survive.
People driving boats in the oceans are polluting it with oil. Also when you throw something light like a water bottle away it can blow into the ocean by the wind. People that fish sometimes take too many fish and destroying the oceans ecosystem & they don't know it.
Did you know bottlenose dolphins have teeth but they don't chew food. Did you know that oceans cover more than 70 percent of the earth? Oceans have lots of gold in them from boats & ships with gold in them sink. Did you know that 20 percent of earths oil comes from the ocean?