A food chain is when
A big fish eats a smaller fish.
Dolphins favourite food are
lanternfish
Dolphins are important for our planet because
They help fertilize the ocean
Phytoplankton are
The ocean tiniest plants.
Phytoplankton + ocean manure produce
oxygen
Phytoplankton is very important for our planet because
It produces half of the world’s oxygen
Due to over fishing,
One third of fish species are extinct
The open oceans are the world's largest
ecosystems
A group of dolphins is called
A pod
An ecosystem is
a large community of living organisms living together
An ecosystem has
animals, plants and non-living things such as rocks.
What surface of the Earth is covered by oceans?
70 % of the Earth's surface is covered by oceans.
What happens in a food chain?
All the organisms depend on each other to live.
