Early American English was different because early American English was more formal, and had a different tone when spoken
Ozone is toxic, corrosive and generally not breathable which make it different from oxygen. The correct option is A.
<h3>What is ozone?</h3>
The gas molecule ozone (O3) is made up of three oxygen atoms. Ozone, sometimes known as "smog," is hazardous to one's health.
Ozone is a competitor to oxygen. The oxygen (O2) in our air is actually two molecules of oxygen joined together. Ozone is made up of three oxygen atoms joined together to create the molecule O3.
Ozone is toxic, corrosive and generally not breathable which make it different from oxygen.
Thus, the correct option is A.
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