Which of the following statements is not true about ecosystems?

1. A healthy ecosystem can support an unlimited number of life forms.
2. The parts of an ecosystem depend on each other.
3. Predators play a role in balancing the earth's ecosystems.
4. People's activities can improve the health of an ecosystem.

Respuesta :

 healthy ecosystem can support an unlimited number of life forms.
I think the answer is 4 because playing does not help