It is a mixture because the compounds that make up air e.g. oxygen (o2), Carbon dioxide (co2) and the most important Nitrogen which is an element and makes up 78.09% of air are not chemically bound in the way that compounds are because they can be separated easily and there has been no change in state to any of the compounds or elements in air!hope this helpful!
Answer:could u expand on the question
Explanation:
Im not sure but i think its 350. I really hope im right
Answer:
To decrease the algae
Explanation:
Acid lakes have more algae than other lakes
