Answer:
it's called taxonomy or binomial nomenclature
the first name is generic (from genus) and begins with a capital letter
the second name is specific (from species) and begins with a small letter
I think its harmful, because its unhealthy for workers and its harmful to the environment and to the people. Its also a waste of water and it pollutes the air.
hope that i helped and sorry if i was too late.
The food sources available for a particular species in an ecosystem. Also space where they can live and reproduce, but food is the main factor.