What is the difference between phytoplankton and zooplankton?

the difference is

Explanation:

Phytoplankton is the aquatic plants, but Zooplankton are the small aquatic animals. many Phytoplankton rely on sunlight for making their food, and primarily live on the surface of the water, while many of the zooplankton live in the dark and cold area of the water body

Phytoplankton depends on sunlight for making their food, they primarily live on the surface of the water, while zooplankton lives in the darker and colder area of the water body. Being in the category of plants, Phytoplankton releases oxygen into the atmosphere, whereas zooplankton does not have such function.