Pick and copy all the incorrect options for the following question:

Which of these is an abiotic element in an ecosystem?

Options:
- the average yearly rainfall in the ecosystem
- the types of producers found in the ecosystem
- the size of a predator population in the ecosystem
- the microorganisms living in the soil of the ecosystem





- the types of producers found in the ecosystem



- the size of a predator population in the ecosystem



- the microorganisms living in the soil of the ecosystem

