Among the biotic components of the ecosystem, the producer system is ?

1. Sea
2. Rivers
3. Green Plants
4. Animals

the correct answer to this question will be option C, because the green plants can produce their food on their own by using chlorophyll,sunlight,water,co2.as they can produce their food on their on they are called producers of the ecosystem.animals depend on plants for their food directly on indirectly and hence cannot be called producers.we can eliminate options (A,B)