Answer:
it increases oxygen levels and decrease carbon dioxide levels
Arrow symbol →
Explanation:
The arrow symbol in a chemical equation separates the reactants from products.
A chemical reaction is process in which chemical changes leads to the formation of products from reactants.
The arrow symbol → is used to separate the reactants from products
⇆ shows reversibility of the reaction
↑ indicates that gas is given off as product
learn more:
Chemical reaction brainly.com/question/3953793
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One reason is if someone is injured and needed to use pain pills, sometimes they get addicted to it
