Well you want the answer with the same letter in it. A.k.a 2. This means they have the same element in them
O2 (Diatomic oxygen that we breathe) and O3 (Ozone that would be deadly to breathe) have different structures.
So the answer is 2
Answer:
Its Obviously Dinosaurs
Explanation: They died 65 million years ago
Lipids is a kind of biochemical that does not dissolve in water and makes up the cell walls fats oil and waxes
I think it’s to long to fit in a period??
D as it only has a negative effect when being used and it is small at that anyway.