Question

Many factories release carbon dioxide directly into to atmosphere. The carbon dioxide would be considered a(n) __________.

A)
primary pollutant
B)
placer deposit
C)
invasive species
D)
secondary pollutant
E)
scrubber

Answer 1

I think it should be primary pollutant.

Step-by-step explanation:

But what I'm sure of is that too much carbon dioxide released into the air is bad for both the biotic and abiotic factors.