Answer:
To decrease the algae
Explanation:
Acid lakes have more algae than other lakes
D. quantitative data can be recorded.
Explanation:
when an iron bar rust is an example of a chemical change in which a new substance is formed and the change is not easily reversible.for iron to rust moisture and air must be present.while when a substance freezes,it can be easily reversed through melting and no new substance is formed.this change is termed a physical change.
Answer: its a reaction
Explanation:
like coke its a reaction between gas and oxygen
Answer: They belong to the same kingdom but different phyla.
Explanation:
