Harming an animal species has a negative impact on the population size of that species.
Pollution is usually harmful to one or more species of animal or plant.
Pollution is usually harmful to population size of a species. .
What is usually harmful to the population size of a species?
Options:
A) Pollution
B) reproduction
C) viruses
D) disease
E) habitat
F) ecosystems
G) influenza
H) deforestation