Answer:
Not D.
Explanation:
I saw the answer somewhere else on brainly and i took the test and it was wrong
Answer:
Primary pollutants are emitted from natural or anthropogenic sources directly into the atmosphere, while secondary pollutants result from the chemical reactions or the physical interactions between the primary pollutants themselves or between the primary pollutants and other atmospheric components.
Answer:
open system
Explanation:
An open system is a system in which both energy and matter are exchanged with the surroundings.
The molecular formula tell us what elements the atoms are, and how many moles and atoms are attributed toward each element.
The molecular model tells us how the atoms/elements are bonded together.
Molecular formula : CH4
H
l
Molecular model: H -- C -- H
l
<span> H</span>
