A mold spore has a negative impact on the respiratory system.
Molds and spores thrive in water-damaged furniture and carpets.
Water-damaged carpets have a negative impact on the respiratory system.
what has a negative impact on the respiratory system?
Options:
(a) harmful substances
(b) water-damaged carpets
(c) a pathogens
(d) lungs
(e) density
(f) oxygen
(g) Something that causes allergies
(h) some viruses