No, most animals and plants benefit more from fresh water than from salt water. Only those species which live in the ocean are adapted to salt water.
because all the people need it and in it grow the plants
They all do ... but you may be thinking of plants - they don't need animals to survive but animals need plants.
All animals need plants for survival because plants make food and oxygen. we all need oxygen to breathe and the plants I'm sure you know take the carbon dioxide in the air and make it into oxygen. and as for food some animals eat leaves and plants also make food like berries that we and animals eat too. :)
Plants and animals die and decomposers break down their nitrogen containing molecules to ammonia. All animals get the nitrogen they need by eating plants, by eating other animals that ate plants, or by eating animals that ate animals that ate plants.
All animals need sunlight to be active, weather directly or not. For example animals who eat plants need sunlight to make the plants that they eat to get energy. For meat eaters its a bit more complicated. They eat the animals who eat plants who use the sun. so indirectly all animals need sunlight.
nothing at all but we need to do somthing nothing at all but we need to do somthing
True. Even animals that eat other animals rely on green plants- since the prey animals eat green plants. And animals all need oxygen- which is given off by green plants.
If all animals go extinct there will be no need for food!
A saltwater ecosystem is a habitat that consists of marine organisms and environments where saltwater is the predominant feature, such as oceans, seas, and saltwater marshes. These ecosystems are host to a diverse range of marine species, including fish, coral reefs, and various marine plants and animals, all of which are interconnected and reliant on the saltwater environment for survival.
Many animals need to eat plants to live. Other animals eat animals that eat plants. So the food that plants make is the source of life for all animal life.
We need to share with other humans, plants, and animals.
All plants and animals have cells. Some only have one, but it is a feature they all share. Also, all plants and animals have to eat to survive.